Amikacin, Trough Level (Change effective as of 01/21/25: Refer to 3018756 in the January Hotline)

Casandra

Casandra Test Code AR69978Version 1 (DRAFT)

Performing Lab

Lab ARUP LaboratoriesLab Test ID 0090300CPT Code 80150

Amikacin, Trough Level (Change effective as of 01/21/25: Refer to 3018756 in the January Hotline)

Also known as: AMIKT

Clinical Use

Order Test

Use

This test monitors the trough level of amikacin in serum, measuring drug concentration just before the next dose. A trough that exceeds approximately 8 µg/mL is associated with increased risk of toxicity — monitoring ensures drug clearance near the end of the dosing cycle to optimize therapy and minimize nephrotoxicity and ototoxicity.

Special Instructions

This test was changed effective January 21 2025; providers are referred to ARUP test code 3018756 (“Amikacin Level, Trough, Serum”) for current ordering. Clients are advised to confirm CPT codes with their Medicare administrative contractor.