Cefazolin: Difference between revisions

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== Dosing ==
== Dosing ==


* Low dose (for UTI or uncomplicated soft tissue infection): 1 g IV with
* Low dose (for UTI or uncomplicated soft tissue infection): 1 g IV
* Standard dose: 2 h IV q8h
* Standard dose: 2 h IV q8h
* High dose (for critical illness and IE): 2 f IV q6h
* High dose (for critical illness and IE): 2 g IV q6h


=== Renal Dosing ===
=== Renal Dosing ===
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|-
|-
| >40
| >40
| 2 g IV q8h
|
|2 g IV q6h
|
|-
|-
| 20-40
| 20-40
| 2 g IV q12h
| 2 g IV q12h
| 2 h IV q12h
| 2 g IV q12h
|-
|-
| <20
| <20

Latest revision as of 18:43, 15 December 2025

Background

Clinical Breakpoints

Species ECV (μg/mL) Breakpoints (μg/mL) Breakpoints (mm)
S I R S I R
Enterobacteriaceae (systemic) ≤2 4 ≥8
Enterobacteriaceae (urinary) ≤16 ≥32

Dosing

  • Low dose (for UTI or uncomplicated soft tissue infection): 1 g IV
  • Standard dose: 2 h IV q8h
  • High dose (for critical illness and IE): 2 g IV q6h

Renal Dosing

eGFR (mL/min) Standard Dose High Dose
>40 2 g IV q8h 2 g IV q6h
20-40 2 g IV q12h 2 g IV q12h
<20 1 g IV q24h 1 g IV q24h
CRRT 2 h IV q12h 2 h IV q12h