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Test Code SMRSAN MRSA by PCR Assay, Nasal, LAB2202  


Polymerase Chain Reaction (PCR)/DNA Extraction/PCR Amplification/Hybridization

Used for the detection of MRSA.

Note: 1. If specimen source is wound, order #SMRPCR Staphylococcus aureus (SA)/Methicillin-Resistant Staphylococcus aureus (MRSA) Detection by PCR. If specimen source is nasal for pre-surgical screening for MRSA/Methicillin-sensitive Staphylococcus aureus (MSSA); order #SMRSUR Methicillin-Resistant Staphylococcus aureus (MRSA) Detection by PCR, Presurgical.

2. If MRSA is detected, infection control will be notified and inpatients will be isolated.

Performing Laboratory

St. Luke's Hospital Cedar Rapids

Specimen Requirements

Acceptable Specimens:

Nasal screening for colonization


Unacceptable Specimens:

Presurgical nasal or wound screening


1. Submit specimen using aerobic CultureSwab.

2. The CultureSwab contains 2 swabs; using both swabs, insert swab into the anterior nares of each nostril, rotate, remove, and place both swabs in transport media.

3. Maintain sterility and forward promptly.

Note: Indicate specimen source on specimen container and in computer.

Reference Values

No MRSA detected

Critical value: all positives

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding