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Test Code PROGST Progesterone III,LAB529

Methodology

Immunoenzymatic Chemiluminescent Assay

Performing Laboratory

St. Luke's Hospital Laboratory

Specimen Requirements

Container/Tube: 

Preferred: Green top (Lithium Heparin)

Accepted: Red top-serum or Gold SST

Specimen: 0.5 mL of serum

Minimum Volume: 0.012 mL plus dead volume

 

Stability:

  • Room temperature:  1 day.  Samples on analyzer should be measured with in 2 hrs.
  • Refrigeration (2°- 8°C):  5 days
  • Frozen (≤ -20°C): 6 months

Transport Temperature: Refrigerated

Reference Values

Males

<0.15 ng/mL

Normal females

 

follicular phase

0.2 – 1.4 ng/mL

luteal phase

3.3 – 25.6 ng/mL

Pregnant females

  • First Trimester
  • Second Trimester
  • Third Trimester

 

11.2 – 90.0 ng/mL

25.6 – 89.4 ng/mL

48.4– 422.5 ng/mL

Day(s) Test Set Up

Monday- Sunday

Test Classification and CPT Coding

84144

Useful For

Progesterone levels are low during the follicular phase of the menstrual cycle. After ovulation, progesterone production by the corpus luteum increases rapidly, reaching a maximum concentration 4 to 7 days after ovulation. These levels are maintained for 4 to 6 days then fall to baseline levels, inducing menstruation.  During pregnancy, progesterone levels rise steadily to their highest levels in the third trimester. Clinical evaluation of progesterone confirms ovulation and normal luteal function in nonpregnant women. Inadequate progesterone production by the corpus luteum may indicate luteal phase deficiency (LPD), which is associated with infertility and early miscarriage.

Report Available

Stat 1 hr within receipt

Routine 2 hrs within receipt