Geisinger Medical Laboratories/Geisinger Proven Diagnostics Test Catalog

Test Name: Sunquest Test Code Epic Procedure Code Or ID CPT Code:  


Sunquest Test Code:
PGENT      Geisinger Epic Procedure Code: 80170.05         Geisinger Epic ID: 29554

Specimen type:
Serum or plasma.
Preferred collection container:
Specimen required:
2 mL aliquot serum or plasma; minimum 0.2 mL.
Special notes:
The date and time of the last drug dose should be written on request at the time of order. Typically peak level specimens are collected shortly after the dose is given and trough level specimens are collected shortly before the dose is given. Refer to your prescribing pharmacy for specific information on how drug doses are to be administered along with timing of specimen collection.

Specimen processing instructions:
Allow serum to clot. Centrifuge serum or plasma at 1100-2000 g for a minimum of 10 minutes. 
Transport temperature:
Refrigerated (preferred) or frozen.
Specimen stability:
Refrigerated: 1 week. Frozen: 4 weeks.
Rejection criteria:
Stability limits exceeded.

Reference interval:
6 - 10 ug/mL.
Critical values/courtesy alerts:
> 12 ug/mL.
CPT code(s):
Note: The billing party has sole responsibility for CPT coding.  Any questions regarding coding should be directed to the payer being billed.  The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.
Test includes:
Peak gentamicin, gentamicin last dose time, gentamicin last dose date.
Enzyme Immunoassay (EIA)
Clinical significance:
Gentamicin is an aminoglycoside antibiotic used in the treatment of gram-positive and gram-negative bacterial infections, especially Pseudomonas, Proteus, Klebsiella, and Staphylococcus. Serial monitoring of peak and trough serum levels provides the physician with information to maintain safe and therapeutic levels.
Doctoral Director(s:)
Hoi-Ying Elsie Yu, PhD, DABCC
Sheng-Ying (Margaret) Lo, PhD, DABCC    
Review Date: 11/05/2018

Performing Locations

Geisinger Medical Center

Performing laboratory: Automated Chemistry
Technical Lead: Mariana Moyer, Jared Shepherd
Frequency: Daily, Monday - Sunday
Performed stat? Yes

Geisinger Wyoming Valley Medical Center

Performing laboratory: ATL+
Technical Lead: Sarah McGowan    
Frequency: Daily, all shifts    
Performed stat? Yes

Geisinger Holy Spirit Hospital

Performing laboratory: ATL+
Technical specialist: Michele Murdoch    
Frequency: Daily, all shifts    
Performed stat? Yes
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