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: Bivalirudin [Mass/volume] in Platelet poor plasma by Liquid chromatography tandem mass spectrometry (LC-MS/MS) — qualitative or quantitative result as reported

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

: This test measures the level of bivalirudin, an anticoagulant (blood thinner), in platelet-poor plasma using liquid chromatography with mass spectrometry.

Quick summary

[": It helps your care team confirm how much bivalirudin is present in your blood so therapy can be monitored safely."]

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

Key facts at a glance

LOINC
73502-7
Short code
Bivalirudin ind plt IgM SerPl Ql FC
Synonyms
Bivalirudin ind plt IgM SerPl Ql FC
Category
hematology
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
flow-cytometry
CPT
82784
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

: What Is Bivalirudin?

: Bivalirudin is a short-acting injectable anticoagulant used during certain heart procedures and in some patients who cannot receive heparin. It works by directly blocking thrombin, an enzyme needed for blood to clot.

: Why This Test Is Ordered

: Your clinician may order this test to check the concentration of bivalirudin in your blood, especially if you have kidney problems, are on higher doses, or are at increased risk of bleeding or clotting. It can help guide dosing decisions.

: How the Sample Is Collected

: A blood sample is drawn into a tube containing an anticoagulant and then processed to separate platelet-poor plasma. The plasma is analyzed in the laboratory by liquid chromatography combined with mass spectrometry, a highly specific method for identifying and measuring drugs.

: What the Results Mean

: Results are reported as the amount of bivalirudin detected in your plasma. Your care team interprets the result together with your dose, timing of the last dose, kidney function, and clinical condition. Results outside the expected therapeutic window may prompt a dose adjustment or closer monitoring.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

: Bivalirudin monitoring can help balance the risk of bleeding against the risk of clot formation, particularly in patients with impaired kidney clearance or those undergoing procedures requiring precise anticoagulation. Because interpretation depends on timing and clinical context, results should always be reviewed by the ordering clinician.

Short name

: Bivalirudin, platelet-poor plasma

Frequently asked questions

: Do I need to fast before this test?
: Fasting is generally not required for drug-level testing, but follow any specific instructions from your care team, since timing relative to your bivalirudin dose matters.
: Can I take my other medications before the blood draw?
: Ask your clinician or pharmacist before changing any medications. Some drugs can affect bleeding risk or bivalirudin levels, and your care team will tell you what to do on the day of testing.
: How long does it take to get results?
: Turnaround time varies by laboratory, but specialized drug testing such as this often takes from several hours to a few days. Your care team will discuss results with you once available.
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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