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Bumetanide Concentration in Plasma

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

This test measures the amount of the medication bumetanide in your blood plasma. It helps doctors check if your dose is working properly and adjust it if needed.

Quick summary

["This test helps monitor your response to bumetanide, a loop diuretic used to treat fluid buildup in conditions like heart failure or kidney disease."]

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

Key facts at a glance

LOINC
73498-8
Short code
Bumetanide ind plt IgM SerPl Ql FC
Synonyms
Bumetanide 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 Is Done

Your doctor may order this test if you’re taking bumetanide to manage excess fluid. It helps ensure the medication is effective and avoids side effects like low blood pressure or electrolyte imbalances.

What to Expect Before the Test

No special preparation is needed, but you may need to fast for 8–12 hours before the test if instructed. Bring a list of all medications, including over-the-counter drugs or supplements, to share with your healthcare provider.

How the Test Is Performed

A healthcare professional will draw blood from a vein in your arm using a small needle. You may feel a brief pinch, but the procedure is quick and usually painless. The blood sample is then sent to a lab for testing.

What the Results Mean

Results are compared to a reference range specific to your medication dose and health condition. Low levels may indicate the medication isn’t working as intended, while very high levels could signal toxicity or improper absorption.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Bumetanide levels are critical for managing conditions like congestive heart failure or edema. Abnormal results prompt adjustments to dosage, lifestyle changes (e.g., diet, fluid intake), or further medical evaluation to prevent complications like kidney damage or electrolyte disturbances.

Short name

Bumetanide Level

Frequently asked questions

How long does it take to get results?
Results are typically available within 1–3 business days, depending on lab processing times. Your doctor will contact you once they’re ready to discuss the findings.
What does a low bumetanide level mean?
A low level may suggest the medication isn’t absorbing well or isn’t effective for your condition. Your doctor might increase your dose or check for other health issues affecting absorption.
Can I eat or drink before this test?
Follow your doctor’s instructions, but generally, fasting for 8–12 hours before the test is recommended unless otherwise directed. Avoid caffeine or alcohol in the 24 hours before testing.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

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.

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