Ordering RecommendationRecommendations when to order or not order the test. May include related or preferred tests.
Monitor levels of antimicrobial drug, piperacillin.
MnemonicUnique test identifier.
ML PIP
MethodologyProcess(es) used to perform the test.
Quantitative Bioassay
PerformedDays of the week the test is performed.
Sun-Sat
ReportedExpected turnaround time for a result, beginning when ARUP has received the specimen.
2-3 days
New York DOH Approval StatusIndicates test has been approved by the New York State Department of Health.
This test is New York DOH approved.
Specimen Required
Patient Preparation
Collect
Plain red.
Specimen Preparation
Aseptically remove 2 mL serum to a sterile tube (ARUP supply #43115) and freeze. Available online through eSupply using ARUP Connect™ or contact ARUP Client Services at (800) 522-2787. (Min: 1 mL)
Storage/Transport Temperature
Frozen.
Unacceptable Conditions
Plasma.
Remarks
Required information includes: time and date of collection, time of last dose, and list of all antibiotics that the patient is receiving or has received in the past 48 hours.
Reference IntervalNormal range/expected value(s) for a specific disease state. May also include abnormal ranges.
Interpretive DataBackground information for test. May include disease information, patient result explanation, recommendations, details of testing, associated diseases, explanation of possible patient results.
Normal peak serum concentration for piperacillin is 389-484 µg/mL with a 4 g IV dose of piperacillin, 209 µg/mL with a 3.375 g IV dose of piperacillin/tazobactam, or 224 µg/mL with a 4.5 g IV dose of piperacillin/tazobactam. Trough serum concentration is not well established.
For bioassay measurements, the presence of other antimicrobial agents may interfere with the assay. Other factors that may influence antimicrobial levels include inherent differences among patients and their underlying physical conditions as well as the dose and route of administration of the antimicrobial agent.
Compliance Category
Standard
NoteAdditional information related to the test.
Please include time of last dose, and list of all antibiotics that the patient is receiving or has received in the past 48 hours. This information is important for laboratory handling and essential for subsequent physician interpretation of results.
CPT CodesThe American Medical Association Current Procedural Terminology (CPT) codes published in ARUP's Laboratory Test Directory are provided for informational purposes only. The codes reflect our interpretation of CPT coding requirements based upon AMA guidelines published annually. CPT codes are provided only as guidance to assist clients with billing. ARUP strongly recommends that clients confirm CPT codes with their Medicare administrative contractor, as requirements may differ. CPT coding is the sole responsibility of the billing party. ARUP Laboratories assumes no responsibility for billing errors due to reliance on the CPT codes published.
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
AliasesOther names that describe the test. Synonyms.