Quinaprilat (Active Metabolite) in Plasma
This test measures the level of quinaprilat, a medication metabolite, in your blood plasma. Quinapril is a common blood pressure medication used to help lower high blood pressure.
["Understanding your quinaprilat levels helps doctors monitor how well your blood pressure is being controlled on this medication."]
Key facts at a glance
- LOINC
- 73180-2
- Short code
- Quinapril ind plt IgM SerPl Ql FC
- Synonyms
- Quinapril 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
Why This Test Might Be Ordered
Your healthcare provider may order this test if you’re taking quinapril (an ACE inhibitor) to check how your body is processing the medication. It can help assess whether your blood pressure is being managed effectively or if adjustments to your dose are needed.
What to Expect Before the Test
No special preparation is usually required. You may have a small needle inserted into a vein (venipuncture) in your arm or hand to draw a blood sample. If you’re on blood-thinning medication or have a history of bleeding issues, let your provider know.
What the Results Mean
Quinaprilat levels don’t always have a standard reference range because they vary based on individual metabolism and dose. Your results will be interpreted in relation to your specific treatment goals and overall health. High levels might indicate poor metabolism or excessive dosing, while low levels could suggest insufficient medication absorption.
Common Reasons for Monitoring
Doctors may monitor quinaprilat levels if you experience side effects like dizziness, cough, or kidney issues. It’s also useful for patients with liver disease or those taking other medications that might interact with quinapril.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Quinaprilat is the active metabolite of quinapril, helping maintain blood pressure control. Abnormal levels may signal issues like reduced kidney function, altered drug metabolism, or potential drug interactions. Regular monitoring helps optimize therapy and reduce side effects.
Short name
Quinaprilat Level
Frequently asked questions
Will this test show if I’m taking quinapril correctly?
Can I eat or drink before this test?
What are the most common side effects of quinapril?
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