Gentamicin - Blood

1 x 5 mL light green (mint) top PST tube.  Gold top SST tube is also acceptable.

Minimum Blood Volume for Patients less than 45 kg (100 lb) Including Neonates and Pediatrics

Two specimens required - one trough and one peak.
Specimens MUST be marked accordingly.

Trough (Predose): Collect 0-30 min prior to next dose
Peak (Postdose): Collect 30 min after IV infusion or 1-2 hours after IM injection

Collection time for once daily dosing regime is 6-14 hours after dose started (usually 8 hours).

RECORD time of last dose on requisition.

LIST any other antibiotics patient is receiving.

For additional information, see Half-life and time to Steady State.

Pre-dose	0.0-2.0 mg/L
Post-dose	5.0-10.0 mg/L

Click here for critical values.