Nov 2, 2015




Clinical Hub,Tools & Resources,UWHC Lab Test Directory,Urinalysis

pH, Urine (Methotrexate Protocol)

pH, Urine (Methotrexate Protocol) (UPHMTX) Urinalysis Lab Test

Name: pH, Urine (Methotrexate Protocol)

Test Name: pH, Urine (Methotrexate Protocol)

Health Link Test Code: UPHMTX


CPT Code(s): 83986

Methodology: Automated Urine Chemistry Analyzer

Clinical Information:

This test is intended for inpatients receiving high-dose methotrexate ONLY. 

Days Performed: Daily, 24 hours.

In-Lab Turnaround Time: 4 hours.

Stat In-Lab Turnaround Time: 1 hour.

Specimen: Urine

Collection Container: Sterile screw cap container

Collection Instructions:

Refrigerate if transportation to lab is delayed. Indicate whether specimen is midstream, indwelling catheter, single catheter or other method of collection. For midstream urine collection instructions refer to Health Facts for you - Male HF #4247, Female HF # 4236 located on UConnect.

Collection Volume: 10 mL

Pediatric Collection Volume: 3 mL

Stability Ambient:

2 hours

Stability Refridgerated:

24 hours

Stability Frozen:

Not acceptable

Sample Analyzed: Urine aliquot

Testing Volume: 10 mL

Pediatric Testing Volume: 3 mL

Specimen Transport:

Transport specimen to the laboratory immediately.

Unacceptable Criteria:

Samples held at room temperature for more than 2 hours or samples refrigerated for more than 24 hours are not acceptable.


Age 0 days and up:  7.0 - 9.0

Interpretation Type: Reference Interval

Effective Date of Reference Range: Mon, 02 Nov 2015 08:00:00 CST

Critical Calls: yes