Vancomycin Hydrochloride
The Vancomycin blood level test measures antibiotic concentration in the bloodstream. It is used to ensure effective treatment while minimising the risk of toxicity.
Turnaround time
Results available 1 day after arrival in lab. Doctor's report sent the day after results available (if required)
Biomarkers count
1
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Details about Vancomycin Hydrochloride
What is the Vancomycin Hydrochloride test?
The Vancomycin Hydrochloride test measures the concentration of vancomycin in the blood. Vancomycin is a powerful intravenous antibiotic used to treat serious bacterial infections, particularly those caused by resistant organisms such as MRSA.
Because vancomycin has a narrow therapeutic range, blood level monitoring is essential. Levels that are too low may lead to treatment failure, while levels that are too high increase the risk of kidney toxicity and other side effects.
This test is part of therapeutic drug monitoring (TDM) and is routinely used in hospital and outpatient care.
Why do I need a Vancomycin blood level test?
Monitoring ensures the antibiotic dose is effective and safe, especially during prolonged or high-dose treatment.
You may need this test if you:
- Are receiving intravenous vancomycin
- Require dose adjustment
- Have reduced kidney function
- Are being treated for severe or resistant infections
- Need routine monitoring during ongoing therapy
- Are at risk of medication-related toxicity
Providing dosing time and infusion details improves result interpretation.
Benefits of the test
- Optimises antibiotic effectiveness
Ensures therapeutic drug levels are achieved. - Reduces kidney toxicity risk
Prevents excessive vancomycin exposure. - Supports safe dose adjustment
Guides personalised dosing. - Essential in serious infections
Standard monitoring for resistant bacteria. - Accounts for kidney function changes
Important in renal impairment. - Simple blood-based testing
Requires only one blood sample. - Widely used in clinical practice
Standard in infectious disease care. - Improves treatment safety
Early detection of abnormal levels.
Step-by-step: How we offer testing
Clinic-based testing (UK-wide)
- Choose your nearest UK clinic
- Attend your appointment
- Blood sample taken at the correct time (usually pre-dose)
- Dosing and infusion details recorded
- Sample sent to the laboratory
Home or hotel visit (+£60, UK-wide)
- Mobile phlebotomist arranged where appropriate
- Blood sample taken at the appropriate time
- Sample securely transported to the laboratory
Your results explained
Low level (sub-therapeutic)
- Vancomycin below target range
- UK standard (typical trough): <10 mg/L
- May reduce treatment effectiveness
Therapeutic level
- Vancomycin within target range
- UK standard (typical trough): 10–20 mg/L
- Suggests appropriate dosing
High level (toxicity risk)
- Vancomycin above recommended range
- UK standard: >20 mg/L
- Increased risk of kidney damage and side effects
Target ranges may vary depending on infection severity and clinical guidelines.
How It Works
Simple steps to get your results
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Choose your test online and book in seconds. Select your preferred clinic location or home visit option.
Visit or Test at Home
Attend one of our UK or London clinics, arrange a home nurse visit, or use a finger-prick kit where available.
Get Your Results
Your sample is analysed by accredited UK laboratories, with secure results delivered directly to you.
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WhatsApp UsHow to Prepare for Your Test
Follow these guidelines for accurate results
Sample Timing
Where possible, attend your blood test between 7am and 12pm. Please wait until any short-term illness or infection has fully resolved before testing. Avoid intense exercise for 24–48 hours beforehand, as this can affect certain markers.
Fasting & Hydration
Fasting is not always required, but some tests may recommend it. If fasting is advised, avoid food for 8–12 hours before your appointment and drink water only. Stay well hydrated, as this helps with sample collection and accuracy.
Medications & Supplements
Continue prescribed medications unless advised otherwise by your clinician. Avoid vitamin, mineral, or biotin supplements for at least 24–48 hours before your test, as these can interfere with results. If you are unsure about any medication or supplement, please let us know before your appointment.
Hormones & Menstrual Cycle
For hormone-related tests, timing within your menstrual cycle may be important. If relevant, follow any specific guidance provided on your test page.
If you have any questions or special circumstances, our team is happy to advise before your appointment.