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Streptomycin Level (Serum)

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

This test measures the amount of streptomycin, an antibiotic, in your blood serum. Streptomycin is used to treat certain bacterial infections, including tuberculosis.

Quick summary

["Streptomycin levels help monitor your treatment and ensure safe dosing."]

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

Key facts at a glance

LOINC
25185-0
Short code
Streptomycin Islt Slgr Mcbct AB 6.0
Synonyms
Streptomycin Islt Slgr Mcbct AB 6.0
Category
coagulation
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
method-for-slow-growing-mycobacteria-antibiotic-concentration-at-ug-ml
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 healthcare provider may order this test if you’re being treated with streptomycin for bacterial infections. It helps assess how well your body is responding to the medication and whether your blood levels are within a safe range to prevent side effects.

What to Expect Before the Test

No special preparation is needed. You may have a small needle inserted into your arm to draw blood. This is usually done in a clinic or lab setting.

What the Results Mean

Results are interpreted by your healthcare provider based on your medical history, symptoms, and overall health. Abnormal levels may indicate either insufficient or excessive exposure to the medication.

Common Reasons for Monitoring

Regular monitoring is important if you have kidney issues, as streptomycin can affect kidney function. It also helps prevent toxicity, especially in people with pre-existing health conditions.

Reference range

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

Specimen: serum

No special preparation required. Stay well hydrated.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Streptomycin levels are critical for balancing treatment effectiveness and minimizing risks. High levels may cause kidney damage or nerve problems, while low levels may mean the infection isn’t fully treated.

Short name

Streptomycin in Serum

Frequently asked questions

Why might my doctor want to check my streptomycin level frequently?
Your doctor may check levels often if you have kidney problems, are taking high doses, or have other health conditions that could affect how your body processes the medication.
What happens if my streptomycin level is too high?
If levels are too high, it could lead to serious side effects like kidney damage, hearing loss, or nerve damage. Your doctor may adjust your dose or stop the medication temporarily.
Can I eat or drink before this test?
You can eat and drink normally unless your doctor instructs otherwise. Blood tests don’t require fasting unless specified for other reasons.
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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