{"id":"gentamicin-peak","name":"Gentamicin (Peak)","shortName":"Gentamicin Peak","aliases":["Gentamicin Level, Peak","Gentamicin (Peak)","Gentamicin Peak","Gentamicin, Peak","Gentamicin Peak Level","Gentamicin, Peak Level","Gentamicin Peak, Serum","Gentamicin Level Peak"],"abbreviations":[],"loinc":[{"code":"3663-2","primary":true},{"code":"22746-2","primary":false},{"code":"31091-2","primary":false}],"specimen":"serum-or-plasma","units":[{"ucum":"ug/mL","display":"mcg/mL"},{"ucum":"mg/L","display":"mg/L"},{"ucum":"umol/L","display":"µmol/L"}],"referenceRanges":[{"population":"Adults","low":5,"high":10,"unit":"ug/mL","unitDisplay":"mcg/mL","note":"This is a typical target for traditional dosing several times a day, not a normal range. One 2024 hospital protocol used peaks of 5 to 6 mcg/mL for urinary tract infections, 6 to 8 for bloodstream and skin infections, and 8 to 10 for pneumonia. The FDA label expects about 4 to 6 mcg/mL 30 to 60 minutes after an injection into a muscle. Peaks after high-dose once-daily dosing run higher, and many hospitals guide that regimen with other targets such as the area under the curve. Your care team sets your target.","sources":[{"title":"Appropriateness of gentamicin therapeutic drug monitoring at a Middle Eastern tertiary hospital setting: a retrospective evaluation and quality audit","url":"https://doi.org/10.1080/20523211.2024.2375753","publisher":"Journal of Pharmaceutical Policy and Practice","year":2024},{"title":"Gentamicin Sulfate Injection, USP: prescribing information","url":"https://dailymed.nlm.nih.gov/dailymed/lookup.cfm?setid=977180b3-a222-4282-d485-4a3217674305","publisher":"Hospira, via DailyMed (NIH National Library of Medicine)","year":2026},{"title":"Aminoglycosides: an update on indications, dosing and monitoring","url":"https://doi.org/10.18773/austprescr.2025.038","publisher":"Australian Prescriber","year":2025}]}],"review":{"status":"ai-verified","label":"AI-verified against cited sources. Awaiting expert review","lastReviewed":"2026-10-03"},"summary":"Shows the highest level of the antibiotic gentamicin in your blood shortly after a dose, to check the dose is strong enough without being too strong.","url":"https://bloodtesttracker.com/markers/gentamicin-peak","notice":"Information, not medical advice. Ranges differ between labs, so the range on your own report is the one your result is judged against."}