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Test Code LAB86 Follicle-Stimulating Hormone (FSH), Plasma or Serum

Reporting Title

FSH

Methodology

Roche Diagnostics, Elecsys®/Electrochemiluminescence Immunoassay

Useful in diagnosis and treatment of pituitary and gonadal disorders in both males and females.

Performing Laboratory

OhioHealth Laboratory Services - RMH, MH, OBH Core Laboratories

Specimen Requirements

Collection Instructions:

1. Serum and Plasma gel tubes should be centrifuged within 2 hours of collection.

2. Red-top tubes should be centrifuged and aliquoted within 2 hours of collection.

 

Submit only 1 of the following specimens:

 

Preferred:

Serum

Draw blood in a gold-top serum gel tube(s). Spin down and send 1 mL of serum refrigerated.

Note:

1. A speckled-top serum gel tube (s) or a plain, red-top tube(s) is also acceptable.

2. Heterophile antibodies may interfere with this assay.

3. Indicate serum on request form.

4. Label specimen appropriately (serum).

 

Alternate: 

Plasma

Draw blood in a mint green-top (heparin) gel tube(s). Spin down and send 1 mL of heparinized plasma refrigerated.

Note:  1. Heterophile antibodies may interfere with this assay.

2. Indicate plasma on request form.

3. Label specimen appropriately (plasma).

Specimen Stability Information

Specimen Type Temperature Time
Serum or plasma Refrigerated 14 days
  Ambient  14 days
  Frozen  6 months

 

Specimen Transport Temperature

Refrigerate/Frozen OK/Ambient OK

Reference Values

Roche

Up to 30d male and female reference ranges are the same:
0-2 d     <0.2 – 0.8 mIU/mL
3 d        <0.2-2.4 mIU/mL
4 d        <0.2-2.3 mIU/mL
5 d        <0.2-3.4 mIU/mL
6 d        <0.2-4.5 mIU/mL
7 d        <0.2-21.4 mIU/mL
8-30 d  <0.2-22.2 mIU/mL
31d-4 y       Male 0.2-2.8              Female   0.2-11.1
5 -9 y          Male 0.4-3.8              Female   0.3-11.1
10-12 y       Male 0.4-4.6              Female   2.1-11.1
13-1 8y       Male 1.5-12.9            Female   1.6-17.0

>19 Y         Males 1-12 mIU/mL 

Females

Follicular phase:    3-20 mIU/mL

Midcycle peak:       9-26 mIU/mL

Luteal phase:         1-12 mIU/mL

Postmenopausal:  18-153 mIU/mL

Note:  1. Patients who receive FSH as treatment for infertility may develop FSH antibodies which interfere with this assay.

2. FSH has a pulsatile secretion; specimens drawn at different times in the same day may vary widely within reference range.

Day(s) Test Set Up

Monday through Sunday; Continuously

Test Classification and CPT Coding

83001