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Platelet Function Assay with Platelet-Rich Plasma (PRP) and Antiplatelet Agent Induction (eptifibatide)

Published: August 9, 2026Updated: August 16, 2026

This test measures how platelets function in your blood when exposed to a medication called eptifibatide, which helps prevent blood clots.

Quick summary

["Assesses how well your platelets work under medication influence, often used before procedures like angioplasty."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
73396-4
Short code
Eptifibatide ind plt IgM SerPl Ql FC
Synonyms
Eptifibatide ind plt IgM SerPl Ql FC
Category
hematology
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
Method
flow-cytometry
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

Doctors may order this test if you’re about to have a procedure that involves blood vessels, such as angioplasty or stent placement. It helps ensure your blood doesn’t clot too easily while you’re receiving eptifibatide, a medication that reduces platelet activity.

What to Expect Before the Test

No special preparation is needed, but you may be asked to stop certain medications (like aspirin) that affect blood clotting. Bring any recent medications to your doctor’s office.

During the Test

A blood sample is drawn from a vein, usually in your arm. The blood is then processed to create platelet-rich plasma (PRP). Eptifibatide is added to simulate how your platelets behave in your body while on this medication.

What the Results Mean

Results help doctors understand how well your platelets are working under the influence of eptifibatide. If platelets are too active or too inactive, it may affect your safety during procedures.

Reference range

INR: 0.8-1.2 (warfarin: 2.0-3.0)N/A

Specimen: serum

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.

This test is critical for patients receiving eptifibatide to prevent excessive bleeding during or after vascular procedures. Abnormal results may indicate whether the medication is working as intended or if adjustments are needed.

Short name

Platelet Function Test (PRP + Eptifibatide)

Frequently asked questions

Will I feel any pain or discomfort during the blood draw?
You may feel a slight pinch or sting when the needle is inserted, but it usually goes away quickly. Most people don’t feel pain afterward.
How long will it take to get my results?
Results are typically available within 24 to 48 hours, depending on your lab’s processing time.
Can I eat or drink before this test?
You can eat and drink normally unless your doctor specifies otherwise. No fasting is required for this test.
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

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