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| Web: | MayoMedicalLaboratories.com |
|---|---|
| Email: | mml@mayo.edu |
| Telephone: | 800.533.1710 |
| International: | 507.266.5700 |
| Values are valid only on day of printing. | |
Please provide a reason for referral with each specimen. The laboratory
will not reject testing if this information is not provided, but appropriate
testing and interpretation may be compromised or delayed.
Submit only 1 of the following specimens:
Autopsy
Wash biopsy site with an antiseptic soap (e.g., pHisoHex). Thoroughly
rinse area with sterile water. Do not use alcohol or iodine preparations.
Biopsy specimens are best taken by punch biopsy to include full
thickness of dermis. Biopsy should be 4 mm in diameter. Aseptically
place biopsy in a screw-capped, sterile container with sterile Hank's
balanced salt solution, Ringer's solution, or normal saline. (Hank's
balanced salt solution [Supply T132] is supplied.) Do not handle
with hands. Label container with patient's name and laboratory
control number. Send specimen refrigerated. Specimen cannot be
frozen. Advise Express Mail or equivalent if not on courier service.
Note: If ordering electronically, please complete and submit a
"MayoConnect Additional Test Information Form" (Supply
T357) with the specimen. If not ordering electronically,
please complete and submit a "Cytogenetics/AFP
Congenital Disorders Request Form" (Supply T238) with
the specimen.
Chorionic Villi
Obtain 20 mg to 30 mg of chorionic villus specimen (CVS) by the
transabdominal or transcervical method. Transfer the CVS to a
Petri dish containing transport medium. Using a stereomicroscope
and sterile forceps, assess the quality and quantity of the villi and
remove any blood clots and maternal decidua. Transfer the CVS
by using sterile technique to one or two 15-mL centrifuge tube(s)
with 15 mL of transport medium. (Petri dishes and transport medium
[Supply T095] are supplied.) Label the centrifuge tube(s) with
patient's name and laboratory control number. Send specimen
refrigerated. Specimen cannot be frozen. Advise
Express Mail or equivalent if not on courier service.
Note: If ordering electronically, please complete and submit a
"MayoConnect Additional Test Information Form" (Supply
T357) with the specimen. If not ordering electronically,
please complete and submit a "Cytogenetics/AFP
Congenital Disorders Request Form" (Supply T238)
with the specimen.
Products of Conception or Stillbirth
Where a fetus is identified, obtain about 1 cm(3) of placenta
(including 20-mg chorionic villi) and a 1-cm(3) biopsy specimen of
muscle/fascia from the thigh. Do not send the entire fetus. If a fetus
cannot be specifically identified, collect 50-mg villus material or tissue
that appears to be of fetal origin. Do not handle with hands. Aseptically
place each specimen in a screw-capped, sterile container with sterile
Hank's balanced salt solution, Ringer's solution, or normal saline.
(Hank's balanced salt solution [Supply T132] is supplied.)
Label each container with the specimen type, patient's name, and
laboratory control number. Send specimen refrigerated. Specimen
cannot be frozen. Advise Express Mail or equivalent if not on
courier service.
Note: 1. If a fetus is sent, please provide a parental release
form or complete the "Final Disposition of Fetal/
Stillborn Remains" form and send it with the fetus.
(A copy of this form can be found in Special Instructions.)
Please note that completion of the form requires a parent's
signature.
2. If ordering electronically, please complete and submit
a "MayoConnect Additional Test Information Form"
(Supply T357) with the specimen. If not ordering
electronically, please complete and submit a "Cytogenetics/
AFP Congenital Disorders Request Form" (Supply T238)
with the specimen.
Skin Biopsy
Wash biopsy site with an antiseptic soap (e.g., pHisoHex).
Thoroughly rinse area with sterile water. Do not use alcohol or iodine
preparations. A local anesthetic may be used. Biopsy specimens
are best taken by punch biopsy to include full thickness of dermis.
Biopsy should be 4 mm in diameter. Aseptically place biopsy in a
screw-capped, sterile container with sterile Hank's balanced salt
solution, Ringer's solution, or normal saline. (Hank's balanced salt
solution [Supply T132] is supplied). Do not handle with hands. Label
container with patient's name and laboratory control number. Send
specimen refrigerated. Specimen cannot be frozen.
Advise Express Mail or equivalent if not on courier service.
Note: If ordering electronically, please complete and submit a
"MayoConnect Additional Test Information Form" (Supply
T357) with the specimen. If not ordering electronically,
please complete and submit a "Cytogenetics/AFP
Congenital Disorders Request Form" (Supply T238) with
the specimen.
Refrig\Ambient OK\Frozen NO
Specimens Other Than: CVS, Tissue, Products of Conception,
Stillbirth, Autopsy
Anticoagulants Other Than: NA
Hemolysis: NA
Thawing: NA
Lipemia: NA
Monday through Friday; 6am - 9pm. Saturday/Sunday; 6am - 4pm