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UW Health SMPH
American Family Children's Hospital

UW Hospital and Clinics Lab Test Directory

Test Name: Clarithromycin, Level

Test Code(s): MISC / RMISC

CPT Code(s): 80299

Testing Site: Testing will be sent to an approved reference laboratory.

Specimen Requirements

Specimen: Blood

Collection Container: Preferred: Red top
Also Acceptable: Green top (with sodium heparin anticoagulant)

Collection Volume: Preferred: 9 mL
Pediatrics: 4 mL

Sample Analyzed: Serum

Volume Required: Preferred: 2 mL
Pediatrics: 0.5 mL

Specimen Processing: Separate serum from cells immediately. Freeze serum.

Specimen Transport: Transport frozen specimen to UWHC Core Laboratory (B4/220) on dry ice.

Unacceptable Criteria: Severe hemolysis. Specimens thawed for greater than 24 hours.


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