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Test Code PSEUDM Pseudocholinesterase, Total, Serum

Additional Codes

 

MAYO Test ID

PCHES

EPIC Test ID

LAB965

 

Reporting Name

Pseudocholinesterase, Total, S

Useful For

Monitoring exposure to organophosphorus insecticides

 

Monitoring patients with liver disease, particularly those undergoing liver transplantation

 

Identifying patients who are homozygous or heterozygous for an atypical gene and have low levels of pseudocholinesterase

Method Name

Photometric, Acetylthiocholine Substrate

Performing Laboratory

Mayo Medical Laboratories in Rochester

Specimen Type

Serum


Necessary Information


Patient's age and sex are required.



Specimen Required


Container/Tube: 

Preferred: Serum gel

Acceptable: Red top

Specimen Volume: 1 mL

Collection Instructions:

1. For cases of prolonged apnea following surgery, wait 24 hours before obtaining specimen.

2. Serum gel tubes should be centrifuged within 2 hours of collection.

3. Red-top tubes should be centrifuged and aliquoted within 2 hours of collection.


Specimen Minimum Volume

0.25 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Refrigerated (preferred) 7 days
  Frozen  7 days

Reject Due To

Hemolysis

Mild reject; Gross reject

Lipemia

NA

Icterus

NA

Other

NA

Reference Values

Males

≥18 years: 3,100-6,500 U/L

Females

18-49 years: 1,800-6,600 U/L

≥50 years: 2,550-6,800 U/L

Reference values have not been established for patients that are <18 years of age.

Day(s) and Time(s) Performed

Monday through Sunday; Continuously

CPT Code Information

82480

LOINC Code Information

Test ID Test Order Name Order LOINC Value
PCHES Pseudocholinesterase, Total, S 2098-2

 

Result ID Test Result Name Result LOINC Value
PCHES Pseudocholinesterase, Total, S 2098-2

Analytic Time

Same day/1 day

Test Classification

This test has been cleared or approved by the U.S. Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.

Forms

If not ordering electronically, complete, print, and send a Gastroenterology and Hepatology Test Request Form (T728) with the specimen (http://www.mayomedicallaboratories.com/it-mmfiles/gastroenterology-and-hepatology-test-request.pdf)