Prolactin, Serum (30-Minute Post-Resting) with HIV Screening
This test measures your prolactin hormone level in your blood after resting for 30 minutes, along with a screening for HIV antibodies.
["Prolactin helps regulate hormones like estrogen and progesterone, and HIV screening helps detect the virus early."]
Key facts at a glance
- LOINC
- 44927-2
- Short code
- Prolactin 30M p TRH IV SerPl-aCnc
- Synonyms
- Prolactin 30M p TRH IV SerPl-aCnc
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Ref low
- 0.8
- Ref high
- 1.2
- Critical range
- — – 5 N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- CPT
- 85610
- SNOMED
- 396252006
- Specimen volume
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
Why This Test Is Done
Your doctor may order this test to check for hormonal imbalances (such as high prolactin levels) that could affect fertility, menstrual cycles, or other health issues. It may also be done if you have symptoms like breast changes, irregular periods, or unexplained infertility. The HIV screening helps identify potential infection early, even if you don’t have symptoms yet.
What to Expect Before the Test
You’ll likely need to fast for a few hours before the test, but the 30-minute resting period is separate from fasting. Bring any medications you’re currently taking, as some may affect results. Avoid strenuous activity or caffeine before the test.
What Happens During the Test
A healthcare provider will draw blood from a vein in your arm. You may feel a slight pinch, but it usually doesn’t cause significant discomfort. The blood sample is then sent to a lab for analysis.
What the Results Mean
Prolactin levels vary by gender and health status. High prolactin can cause hormonal issues, while low levels may indicate other conditions. HIV screening results are either positive or negative for antibodies. Follow-up testing may be needed if results are unclear.
Reference range
INR: 0.8-1.2 (warfarin: 2.0-3.0)N/A
Inform your healthcare provider if you are taking blood thinners. No special preparation required.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Elevated prolactin can disrupt normal hormone function, potentially leading to infertility, menstrual irregularities, or galactorrhea (milk production outside breastfeeding). Persistently high levels may signal a pituitary tumor or other conditions. HIV screening is critical for early detection, as the virus can be asymptomatic for years. Both tests help guide treatment or further evaluation if needed.
Short name
Prolactin + HIV Screen
Frequently asked questions
Will I need to prepare differently if I’m pregnant or breastfeeding?
Can I take my usual medications on the day of the test?
How long will it take to get my results back?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy