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Amphotericin B Level-994

Test info

Test name:

Amphotericin B Level

Test number:

994

Excellian order number:

LAB994

Abbreviation:

MSO

Alternate names:

Antifungal drug level
Amphotericin B Antifungal drug level
AMB

Specimen

Patient preparation information:

Dosage and date/time of last dose are required for testing

Specimen type:

Serum

Collection container:

Red serum vial/tube, 5 mL

Volume:

1.0 mL

Minimum volume:

0.5 mL

Collection instructions:

Immediatley following collection, mix sample by gently inverting 5 times

Processing instructions:

Allow sample to clot for a minimum of 30 minutes
Spin within two (2) hours of sample collection
Transfer serum to an Amber screw-cap transfer vial/tube (Mayo)
Protect from light
Freeze

Transport container:

Amber screw-cap transfer vial/tube (Mayo)

Alternate specimen type:

Plasms

Alternate collection container:

Lavender (EDTA), 4mL

Alternate collection instructions:

Immediately following collection, mix sample thoroughly by gentle inverting 8 - 10 times, to prevent clotting

Alternate processing instructions:

Spin within two (2) hours of sample collection
Transfer serum to an Amber screw-cap transfer vial/tube (Mayo)
Protect from light
Freeze

Required forms/information:

U of Texas Fungus Testing Requisition

Dosage and date/time of last dose is required

Transport and stability:

Frozen - OK

Ambient - NO

Refrigerated - NO

Reason for rejection:

Gel barrier tubes

Performance

Performing lab:

U of Texas San Antonio via Mayo Clinical Laboratories (ZW102)

Days set up:

Mo - Fr

TAT:

10 days

Method:

High-Performance Liquid Chromatography

Clinical and Interpretive info

Reference ranges:

See report

Billing

CPT codes:

80299

Tracking

Date created:

03/26/2026

Review date:

03/26/2026