External
DSU Bulletins

(Brisbane & Adelaide)

(previously the SMACC Unit)

4th Floor AMP Place, 10 Eagle St Brisbane Qld 4000.

2nd Floor Blackburn House, 199 Grenfell St Adelaide SA 5000.

Facsimile: 07 3223 8722.

Facsimile: 08 8290 0412

Bob Connolly

07 3223 8325

(Manager, Brisbane)

Dr Bev Grehan

07 3223 8376

Maureen Anderson

08 8290 0365

(Manager, Adelaide)

Dr Jon Kelley

07 3223 8412

Duncan Cape

07 3223 8757

Sue Lee

08 8290 0227

Gaynor Cavanagh

07 3223 8331

Bernadette McCabe

07 3223 8393

SOP BULLETIN

# 29

NOTE: The Diabetes Mellitus SOPs were revoked and redetermined in July 2011, as RMA instruments 89 and 90.

As a result of this change, no further serum dioxin level testing in diabetes claims should be arranged.  Please refer to SoP Bulletin 152 (July 2011) for guidance.

Procedures for arranging Serum Dioxin Analysis

(Diabetes Mellitus SOP)

These Procedures cover:

  • background information;
  • the claim circumstances under which serum dioxin analysis is to be performed;
  • the analysis process (i.e. blood collection, sample dispatch, examination and reporting of results);
  • administrative arrangements (i.e. how to arrange for blood to be collected and forwarded for analysis); and
  • how to apply the results of the analysis to the requirements of the SOP factor.

The ATTACHMENTS comprise:

  • the names, addresses and contact details for arranging appointments in each State, for blood sample collection (ATTACHMENT A); and
  • a document titled – 'WHOLE BLOOD COLLECTION AND PROCESSING FOR DIOXIN ANALYSIS' ' which is the protocol and instructions issued by the pathology firm (ESR) who have been contracted to perform the serum dioxin analysis (ATTACHMENT B).

Background

The current RMA SOPs for Diabetes Mellitus, effective from 30 June 1999, contain 17 different causal and worsening factors for the disease.  A claim for Diabetes Mellitus is therefore able to succeed if a veteran is able to satisfy the requirements of any one of those factors and that factor in turn is found to be causally-related to the veteran's particular service.

The SOP factors address a variety of causes of Diabetes Mellitus including issues such as cigarette smoking, pancreatitis, treatment with certain drugs and exposure to 2, 3, 7, 8-TCDD (dioxin) contaminated herbicides.

It is recognised that most claims for Diabetes Mellitus that succeed will succeed by the application of SOP factors dealing with issues such as cigarette smoking and treatment with certain drugs.

Therefore, in most cases, it should not be necessary to consider the issue of herbicides.

How Herbicides Can be Considered to Cause Diabetes Mellitus

For the rare case where it needs to be considered, the issue of exposure to 2, 3, 7, 8-TCDD (dioxin) contaminated herbicides is addressed in 2 different ways in the Diabetes Mellitus SOPs.

These alternatives are

either by:

1.undertaking work involving hand decanting or spraying of 2,3,7,8-TCDD (dioxin) contaminated herbicides; or undertaking work involving filling, cleaning and maintenance of spray equipment used to apply 2,3,7,8-TCDD contaminated herbicides on more days than not, during a period of at least six months (2 years for BOP cases) before the clinical onset of diabetes mellitus;

or by:

2.the presence of a serum 2,3,7,8-TCDD (dioxin) level of at least 5 ppt (10 ppt for BOP cases) at the time of the clinical onset of diabetes mellitus.

In order to assess whether or not a veteran meets the requirements set out in No. 1 (above), it will be necessary to examine the veteran's statements, service documents and other reliable general information relating to the use of those particular herbicides by the defence forces.  CCPS Commentary contains information to assist in answering this question.

In order to assess whether or not a veteran meets the requirements set out in No. 2 (above), it will be necessary to arrange for a sample of blood to be collected from the veteran and forwarded to a specific pathology firm (ESR in Melbourne) for analysis.

How Will Blood be Collected and Forwarded for Analysis of Dioxin Levels ?

Arrangements have been put in place for the collection of blood samples to be done by a specific Pathology centre in each of the 6 capital cities.  Each of those 6 Pathology centres have been issued with specific blood sample collection instructions by ESR and have also been provided by ESR with a special kit of equipment which is to be used to collect, store and ship the sample.

Claims Assessors will be required to make appointments directly with the relevant specified Pathology centre in the particular capital city which is most convenient for the veteran.  The names and addresses of those centres, the contact details for making appointments and the appointment times and days available for each are contained in an attachment to these Procedures (refer ATTACHMENT A).

The ESR document  'WHOLE BLOOD COLLECTION AND PROCESSING FOR DIOXIN ANALYSIS'  contains the specific blood collection instructions .  This document details how the blood sample is to be collected and treated by the Pathology centres in each capital city prior to them shipping the sample by courier, to ESR in Melbourne.  A copy of this ESR document is also attached to these Procedures (refer Attachment B).

Upon receipt of the blood samples from the State collection centres, ESR will further treat the blood samples, store them and ship them in batches to their laboratory in New Zealand for the analysis to be completed.

The results should be available approximately 6 weeks after the blood sample has been collected and will be reported directly to the veteran and to the Claims Assessor who arranged the appointment.

When Should Dioxin Analysis be Performed ?

The amount of blood required and the complex processing of the sample means that it is a significant procedure for the veteran to undergo, a time-consuming task for the pathology firms involved and an expensive process for DVA.

Therefore, where the requirements of all of the other SOP factors cannot be met in a particular case and the success of the claim hinges on a veteran's exposure to this particular form of herbicide, it is important to first ensure that the veteran is unable to meet the requirements of No.1 (above) before proceeding to have blood collected and analysed for serum dioxin analysis (as per No.2 (above)).

It is stressed that having a veteran's blood collected and analysed for serum dioxin analysis for the purposes of satisfying that particular Diabetes Mellitus SOP factor, should only be undertaken as a last resort after all other possible avenues for accepting the claim have been exhausted.

In addition, before booking an appointment for a veteran to have blood collected for this purpose, the Claims Assessor is to explain to the veteran that a substantial amount of blood will be required (approx. 350ml, an amount equivalent to that given as a blood donation).  The veteran will need to consult his/her LMO before the appointment to ensure that providing this amount of blood will not pose a health risk.

Arranging Appointments for Blood Collection

Because of the specialised nature of how blood is to be collected for the purposes of serum dioxin analysis, special arrangements have been made with particular Pathology Centres in each of the mainland capital cities.  These are listed at ATTACHMENT A to these Procedures.

In order to arrange an appointment for a veteran to have blood collection performed for, Claims Assessors are to contact the Pathology Centre (see ATTACHMENT A) which is the most convenient for the veteran to attend.

It is important that, in each case, the letter to the veteran advising of the time, date and place for the appointment:

  • specifies the purpose of the appointment (i.e. to determine the level of dioxin in the blood by analysing the sample of blood that will be taken);
  • informs the veteran that a substantial quantity of blood (approx 350ml, a similar amount to that provided by a blood donor) will be required;
  • directs the veteran to inform his/her LMO in case there is a health risk in providing this quantity of blood; and
  • includes a copy of the ESR document (ATTACHMENT B to these Procedures) as an enclosure.

The veteran is to be instructed to hand the appointment letter and attachment to the receptionist when he/she reports for the appointment.

The veteran should also be told that the blood collection procedure could take up to an hour and that they may need to remain under observation at the collection centre for a brief period after the procedure to ensure that there are no adverse after-effects such as dizziness, fainting etc.

So that the blood collection Pathology Centre can claim payment for each blood collection that they perform, a copy of the appointment letter in each case is to be sent to the Centre with which the appointment is arranged.

So that ESR can forward the results of the analysis to the particular Claims Assessor who arranged the appointment, a copy of the appointment letter in each case is also to be sent to ESR as per the following address:

ESR

Australian Office

Level 5, 470 Collins St

Melbourne

Vic 3000

Phone:   (03) 9614 7611

Fax:      (03) 9614 7633

Veterans should also be informed of when to expect the results of the analysis and that the processing of their claim will proceed when those results are to hand.

Payments for this Service

An invoice for payment for each blood collection service performed will be submitted by the Pathology Centres.  These invoices will be sent to the Claims Assessor who arranged the appointment.

On receipt of such an invoice and after it has been confirmed that the veteran attended the appointment to have blood collected, Claims Assessors should authorise the claim for payment for that service in accordance with the following amounts which have been agreed with the various collection centres in the States:

NSW

$250

(Pacific Laboratory Medicine Services, Royal North Shore Hospital)

QLD

$125

(Sullivan & Nicolaides Pathology)

VIC

$45

(St Vincent's Pathology, St Vincent's Hospital)

VIC

$80

(Network Pathology, Austin & Repat Medical Centre)

SA

$80

(Haematology Day Centre, Royal Adelaide Hospital)

WA

(no charge, bless 'em)

(St John of God Pathology, St John of God Hospital)

National Office will pay ESR directly for the work undertaken in each case by that firm in accordance with the contractual arrangements

The usual reimbursement arrangements with regard to veterans' travel expenses etc. will apply to these appointments.

When the Results of the Dioxin Analysis are Received

If the veteran's blood sample was collected at the time of the clinical onset of his/her Diabetes Mellitus, then the result will be able to be used directly to assess whether or not the veteran meets the serum dioxin level requirements of the SOP factor (i.e. 5 ppt for RH, 10 ppt for BOP).

If however, the clinical onset of the veteran's Diabetes Mellitus was prior to the time that the blood sample was collected, it will be necessary to calculate the serum dioxin level that was present at the time of clinical onset.

The result of that calculation is to be used to assess whether or not the veteran meets the serum dioxin level requirements of the SOP factor.

How to calculate the level of TCDD (dioxin) that would have been present at the time of clinical onset of Diabetes Mellitus.

The level of dioxin that is present in the body declines very slowly.

To calculate the dioxin level (in ppt) that would have been present at the time of clinical onset of Diabetes Mellitus, the following formula is to be used:

Conset  =  Cpresent * x

Where:

  • Conset is the concentration at the time of onset
  • Cpresent is the concentration now
  • x = 2 T/T2
  • T is the time in years between now and the time of onset, and
  • T2 is the half-life, which in the case of dioxin is 7.5 years

For example, if a veteran's diabetes became manifest 10 years ago and his serum dioxin analysis, performed now, produced a result of 3 ppt :

Step 1 -

calculate T/T2

T/T2 is 10/7.5 = 1.333

Step 2 -

calculate x

x is 21.333 = 2.52

(You can use the scientific calculator on the PC to do this)

Therefore, Conset is 3 times 2.52, which is 7.56

This dioxin level of 7.56 ppt represents what the level would have been at the time of the clinical onset of his/her Diabetes Mellitus.

Because 7.56 ppt is greater than 5 ppt, the requirements of the (RH) SOP factor have been met in this case.

How to Apply the Results of the Dioxin Analysis to the Requirements of the SOP Factor

A causal association between a period of operational service and the level of TCDD, present at the time of clinical onset of diabetes mellitus is supported if a veteran, during that period:

(a)rendered more than 30 days service on land in Vietnam; or

(b)regularly ate fish, fish products, crustaceans, shellfish, or meat from Vietnam; or

(c)regularly ate food cooked with water from Vietnam discoloured by sediment or regularly drunk water from Vietnam discoloured by sediment; or

(d)regularly inhaled dust in a defoliated area in Vietnam or regularly inhaled herbicide fog in Vietnam; or

(e)sprayed or decanted 2,3,7,8-TCDD contaminated herbicides in Vietnam as an occupational requirement.

Because there was little to nil exposure of Australian Defence Forces to TCDD-contaminated herbicides in operational areas other than Vietnam prior to 1970, a causal association between any period of operational service rendered in those areas and the level of TCDD, present at the time of clinical onset of diabetes mellitus is not supported.

Because the Australian Defence Forces have not used or been occupationally exposed to TCDD-contaminated herbicides in Australia since prior to 1972, a causal association between any period of eligible defence service and the level of TCDD, present at the time of clinical onset of diabetes mellitus is improbable and is thus not supported.

CCPS Enhancements

The Commentary relating to Diabetes Mellitus in CCPS will be enhanced to provide the above policy information and guidance for use in applying the dioxin factors in the SOP to claims processing.

Bob Connolly

Asst. Dir., Decision Support Unit (Brisbane)

19 November 1999

B29Nov99 (Dioxin Procedures DM SOP).doc  Page 1 of 8


BLOOD COLLECTION CENTRES

FOR THE PURPOSES OF SERUM DIOXIN ANALYSIS

NSW

PaLMS Transfusion Service

Out-Patient Clinic 9, Ground Floor

Royal North Shore Hospital

Pacific Highway.

ST LEONARDS  NSW 2065

*     *     *

Appointments Contact:

Fiona Craig on (02) 9926 7798

[Appointments available Wed 1:00–4:30 only]

QLD

Sullivan & Nicolaides Pathology

Out-Patient Clinic, Ground Floor

Greenslopes Private Hospital

Newdegate St.

GREENSLOPES

*     *     *

Appointments Contact:    (07) 3394 7721

[Appointments available Mon, Tues, Wed only]

VIC

Central Pathology Collection Centre

Suite 8, 1st floor

St Vincent's Pathology

55 Victoria Pde

FITZROY  VIC 3065

*     *     *

Appointments Contact:

Judy Mietzke on (03) 9288 3974

[Appointments available Mon, Tues, Wed only]

VIC

Clinical Pathology – Blood Collection Svce

Level 3, Harold Stokes Building

Austin & Repatriation Medical Centre

Burgundy St (Outpatients' Entrance)

HEIDELBERG  VIC 3084

*     *     *

Appointments Contact:

Jo Cummins on (03) 9496 5472

[Appointments available Mon, Tues, Wed only]

WA

St John of God Pathology (WA)

Suite 9

Hollywood Specialist Centre

95 Monash Rd

NEDLANDS  WA 6009

*     *     *

Appointments Contact:    (08) 9386 9481

[Appointments available Mon, Tues, Wed only]

SA

Haematology Day Centre

Level 7, East Wing

Royal Adelaide Hospital

North Tce

ADELAIDE  SA 5000

*     *     *

Appointments Contact:   (08) 8222 5632

[Appointments available Mon, Tues, Wed only]

B29Nov99 (Dioxin Procedures DM SOP).doc  Page 1 of 1


ATTACHMENT A

WHOLE BLOOD COLLECTION AND PROCESSING FOR DIOXIN ANALYSIS

[23/9/99 Version]

NB: UNIVERSAL PRECAUTIONS SHOULD BE OBSERVED AT ALL TIMES WHEN COLLECTING AND HANDLING BODILY FLUIDS

The following pages will describe the blood collection procedure and blood separation procedure for the analyses of dioxin and other analytes associated with it.

Materials provided by ESR:

(1)250mL Glass jars and lids

(2)5mL plastic tubes with push-fit stopper

(3)Parafilm for sealing 5mL tube

(4)Pre-printed labels for serum samples (bottles and tubes)

(5)Pre-printed labels for vacutainer tubes and blood bags

(6)Sample Submission forms

(7)Medical Laboratory (Wellington) submission form for lipids analysis

(8)Courier Consignment Notes for sending samples to ESR (Orange TNT forms)

(9)Sample packaging (plastic jar inside cardboard box) complying to IATA requirements for transport of biological materials

Stocks of bottles, labels and forms are held at ESR's Australian Office in Melbourne, and can be obtained from:

ESR

Australian Office

Level 5, 470 Collins St

Melbourne

Vic 3000

Phone:  (03) 9614 7611

Fax: (03) 9614 7633

If you are unable to contact Stuart Glen and need sample bottles etc. urgently, please contact either:

Cathy Bremner (Hatlar Environmental, Melbourne)

Phone  (03) 9629 5300

or

Dr Bob Symons (ESR, Wellington Science Centre, New Zealand)

Phone  tollfree 1800 123 444 (PIN 2846)

Please allow 24 hours for delivery of sample containers to your laboratory from ESR Melbourne and 48-72 hours from ESR New Zealand

Blood Collection using 600mL blood collection bags

I.Materials Needed Per Participant.

(1)Two alcohol swabs

(2)Tincture of iodine solution swab

(3)Gauze, sterile, individually wrapped, 2” x 2”

(4)Tourniquet

(5)600ml blood collection bag WITHOUT anticoagulant with attached 16g needle OR 600 ml bag with needle adapter.

(6)17g AV fistual needle OR 19g butterfly needle that can be attached to  bag with needle adapter

(7)Fenwal centrifuge bag (may not be required if a dry-wall collection bag is used)

(8)300 ml transfer pack

(9)Plasma extractor

(10)Plasma transfer set

(11)Hand scale or vacuum assist device

(12)Latex gloves

(13)Tubing Clamps

(14)Hemostats

(15)Pre-printed labels

(16)Bandaid

II.General Considerations

VERY IMPORTANT – Blood collection for serum differs in two ways from standard blood collection for plasma:

(1)Collection bags must have NO anticoagulant

(2)The blood pack must be allowed to clot at room temperature for 3-6 hours and be placed in a refrigerator  overnight.  The next morning the pack must be moved from the refrigerator and stand at room temperature for 1-2 hours before centrifugation to separate serum.

Blood shall be collected from donors by trained phlebotomists (or other qualified person) working under the standard work practices for your laboratory.  Blood collection must be made by aseptic methods, using a sterile, closed system, and a single venipuncture.  If more than one skin puncture is needed, another collection bag with new needles must be used.

NB: It is important to note that blood collection practices may vary slightly from laboratory to laboratory. It is important that each participating collection laboratory operates under it's standard work practices for the extraction of the quantity of blood specified in this protocol. The critical step in the process is the preparation of the sample for analysis (extraction of the serum), not the blood collection from the patient. Therefore variations to the following collection protocol are allowed, but must be fully documented.

III.Preparation of Venipuncture Site

(1)blood will be drawn form a large, firm vein in an area free from skin lesion.

(2)Apply the tourniquet, select a vein and release tourniquet

(3)Prepare as follows:

(a)Scrub a site approximately 3 inches in a diameter over the selected vein for 30 seconds

(b)Remove any residual soap with one of the alcohol swabs using a spiral motion going from the center of the outer edge of the cleaned area

(c)Apply the iodine starting in the center of the cleaned area and work outward using a circular motion.  Allow to air dry.

(d)Remove the iodine residue with an alcohol swab using the same motion as for the soap.

(e)Cover the sire with sterile gauze until ready to perform the venipuncture.  The prepared site must not be touched after its has been cleaned.

IV.Blood Collection

(1)Check the bag for possible defects

(2)The bag may be filled by gravity or vacuum filled.  If the bag is filled by gravity, a hand scale should be used (not supplied).  If the bag is vacuum filled, a vacuum assist device will be used to monitor volume.

(3)The bag should be appropriately labeled and the label for “Collection Bag” should be placed on the bag prior to venipuncture.

(4)Prepare the skin site, reapply the tourniquet and perform the venipuncture.

(5)Once the needle is firmly in place in the vein, open any clamps applied to the tubing and ensure that blood flow has been established If vacuum assist is used, it should be activated at this point.

(6)The tubing may be taped to hold the needle in place while the blood filling the bag.

(7)Fill the bag with 300-350mls of blood.  Remove tourniquet.

(8)The tubing to the bag should be clamped and the needle may be removed from the participant's arm.  Cover the wound with sterile gauze and have participant raise the arm straight into the air while holding pressure over the wound.  This should be done for 25 minutes to prevent hematoma.

(9)After 15 minutes a bandage should be applied over the puncture site.

V.Care of the participant

(1)Patient care should be as per the laboratory's standard practices for the extraction of this volume of blood.

VI.Blood processing and Separation

NB: THIS IS THE CRITICAL PART OF THE PROCESS

Step 1:

ALLOW THE BLOOD TO CLOT 3-6 HOURS AT ROOM TEMPERATURE AND REFRIGERATE OVERNIGHT BEFORE CENTRIFUGATION.

Step 2:

(1)A Beckman Centrifuge Model #J-6M (or equivalent) should be used.

(2)The blood bag should be placed inside one of the Fenwal centrifuge bags (this may not be required depending on the type of collection bag used). Be sure to balance properly.

(3)The bags will be centrifuged for 15 minutes at the RPM's necessary to attain a force of 5325 x g at 4-10°C.  The formula to calculate the number of RPM necessary to attain 5325 z g is: RPM = 9450 divided by the square of (R), where R is the distance in cm from the center of rotation to the bottom of a test tube when it is extended in the centrifuge head,  (For example, when R = 20.5cm, RPM = 4500).

(4)Place the centrifuge bag of blood on the plasma extractor.  Using the 300ml-transfer bag, spike the collection bag using the coupler at the end of the transfer bag.  It is acceptable to transfer some of the red cells along with the serum since the transfer bag will also be centrifuge.

(5)Place clamps on the tubing to the transfer bag 1-inch apart and cut between the clamps.

(6)Centrifuge the transfer bag containing the serum using the same procedure above.

(7)Two aliquots will be made for each serum specimen. Using pre-printed labels for each participant, label each of the containers as follows:

Priority

Size/type Container

Container Label

1.

250mL glass jar

“SERUM DIOXIN-S1”

2.

5mL plastic tube

“SERUM DIOXIN –S2”

(8)Use a ballpoint pen to add the date collected and your initials to the labels on all containers.

(9)Place the transfer bag containing the serum being careful not to disturb the red cells on the plasma extractor.  A plasma transfer set will be used to transfer the serum to the two containers listed above.

(a)Close the roller clamp on the tubing of the plasma transfer set and insert the white plastic coupler into one of the ports on the transfer bag to break the seal.

(b)Release the handle on the plasma extractor and dispense the serum using the needle end of the plasma transfer set into the bottom of the bag.

(c)Be sure that labels are on each bottle and all patient details match.

(d)Place the caps and/or stoppers back on each of the bottles

(e)Parafilm (or similar sealing tape) should be applied to the 5mL tube to stop any leakage.

(f)Record details on the ESR Sample Submission Form and note in the comments any unusual conditions which affected the specimen, for example: Turbidity, haemolysis (red tinge), low volume, delay in freezing etc.

(g)Fill in the patient details on the Medical Laboratory form.

(h)Store samples at -20°C (or colder) until shipment.

(i)Before shipment, check caps on the large bottles and re-tighten if necessary.

Blood Collection using Vacutainer Tubes

I.Materials needed per participant:

(1)Gauze Sponges

(2)Alcohol Wipes

(3)Bandaid

(4)Paper Tape

(5)10 mL non siliconized glass vacutainer tubes (15 per participant)

(6)19g ¾” butterfly with multiple sample luer adaptor

(7)Preprinted labels

(8)Tourniquet

(9)Vacutainer Holder

(10)Storage Boxes

II.Venipuncture Procedures

NB: It is important to note that blood collection practices may vary slightly from laboratory to laboratory. It is important that each participating collection laboratory operates under it's standard work practices for the extraction of the quantity of blood specified in this protocol. The critical step in the process is the preparation of the sample for analysis (extraction of the serum), not the blood collection from the patient. Therefore variations to the following collection protocol are allowed, but must be fully documented.

The only critical step in the blood collection process using vacutainers is that the tubes MUST NOT BE INVERTED after the sample has been collected.

(1)Lay out blood collection supplies.

(2)Located the puncture site.  Hold with 2 fingers on one side of the “alcohol wipe” so that only the other side touches the punctured site.  Wipe the area in a circular motion beginning with a narrow radius and moving outwards so as not to cross over the area already cleaned.  Repeat with a second alcohol wipe.

(3)Locate vein and cleanse in manner previously described, then apply the tourniquet.  If necessary to feel the vein again, do so: but after you feel it cleanse with alcohol prep again, and dry with a sterile gauze square.

(4)Fix the vein by pressing down on the vein about 1 inch below the proposed point entry into the skin and pull the skin taut.

(5)Approach the vein in the same direction the vein is running, holding the needle so that a 15° angle with the examinees arm.

(6)Grasping the butterfly wings with bevel facing up, push the needle firmly and deliberately into the vein.  Tape the needle in place to allow both hands to be free for collecting the tubes of blood.  Activate the vacuum collection tube.  If the needle is in the vein, blood will flow freely into the tube.  If no blood enters the tube, probe for the vein until entry id indicated by blood flowing into the tube.

(7)For collection, loosen the tourniquet immediately after blood flow is established and release entirely as the last tube fills.  Collect all 15 and label with the patient name.

(NB: DO NOT INVERT THE TUBES.  PLACE UPRIGHT TO AVOID ANY CONTACT WITH THE RUBBER STOPPER WHILE CLOTTING)

(8)After the last tube has filled, withdraw the needle with a swift backward motion.  When the needle is out of the arm, press gauze firmly on the puncture.  Heavy pressure as the needle is being with drawn should be avoided because it may cause the sharp point of the needle to cut the vein.

(9)Have the examinee raise their arm (not bend it) and continue to hold the gauze in place for several minutes.  This will help prevent haematomas.

(10)Label all tubes with the preprinted labels provided (marked “For Vacutainers”), and use a ballpoint pen to add the date collected and your initials to the label.

(11)Place a Bandaid on the subject's arm.

III.WHOLE BLOOD PROCESSING PROCEDURE

Store upright (VERY IMPORTANT!) and allow 20-30 minutes for these tubes to clot before centrifugation.

IV.SERUM PROCESSING PROCEDURE

Materials and Equipment Needed per Participant

(1)Transfer Pipette (1) – can be either glass or plastic (glass pasteur pipette is preferable)

(2)200 mL glass jar with screw cap (1)

(3)5 mL plastic tube with stopper (1)

(4)Pre-printed Labels

(5)Racks

(6)Centrifuge

(7)Freezer (-20°C)

Processing

(1)After the blood has been allowed to clot at room temperature for 20-30 minutes, centrifuge the vacutainer tubes for 10 minutes at the rpm necessary to attain a force of 1000g.  To calculate the number of rpm necessary to attain 1000g, use the following formula:

Rpm = 9450/r

Where r is the distance in centimeters from the center of rotation to the bottom of a test tube when it is extended in the centrifuge head.

Example: for r = 16, rpm = approximately 2400

(2)Using the pre-printed labels for each participant, label each of the containers as follows:

Priority

Size/type Container

Container Label

1.

250mL glass jar

“SERUM DIOXIN-S1”

2.

5mL plastic tube

“SERUM DIOXIN –S2”

(3)Use a ballpoint pen to add the date collected and your initials to the labels on all containers.

(4)To maximise the amount of serum recovered from all of the vacutainer tubes, do the following:

(5)Attach a rubber bulb to one of the Pasteur pipettes (or use a clean plastic transfer pipette).

(6)Transfer all of the serum that is free of red cells from each tube to the 250mL glass jar.

(7)Any remaining serum left in the vacutainer tubes that may have become mixed with red cell should be transferred to a clean 10mL vacutainer tube.  One or two clean tubes may be needed to hold all of the remaining serum/red cell mix.

(8)Centrifuge for 10 minutes and transfer the clear serum to the glass jar containing the serum originally harvested.

(9)Swirl the serum in the jar gently and transfer 3-4mL into the 5mL tube.

(10)Place the screw caps on the 250mL jars and the stopper in the 5mL tube.  Seal the 5mL tube with Parafilm (or similar sealing film) to avoid leakage of the sample. Pace upright in a -20ºC (or lower) freezer and store at the same temperature until shipment to ESR.

(11)Record details on the ESR Sample Submission Form and note in the comments any unusual conditions which affected the specimen, for example: Turbidity, haemolysis (red tinge), low volume, delay in freezing etc.

(12)Fill in the patient details on the Medical Laboratory form.

(13)Store samples at -20°C (or colder) until shipment.

(14)Before shipment, check caps on the large bottles and re-tighten if necessary

Specimen Shipping

NB: Before shipment, check caps on the large bottles and re-tighten if necessary

All specimen containers should be returned to the boxes in which they were supplied.  Place each of the specimens inside the bubble bag and seal. Place some freezer blocks or bags in the plastic container with the bagged specimens to keep them frozen during transit.  Add any packing material needed to ensure samples will not break.

Ship by overnight courier to:

ESR

Australian Office

Level 5, 470 Collins St

Melbourne

Vic 3000

Phone:  (03) 9614 7611

Fax: (03) 9614 7633

NB: On the day a shipment is being made, please phone, fax or Email ESR to advise shipping details.

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