Urinalysis Macroscopic Reflex to Microscopic


Abbrev Code:UMIR   
Order Code:LAB3844Order Name:Urinalysis Macroscopic Reflex to Microscopic
Synonyms:Chemical Screen Reflex to Microscopic
Methodology:Depending on testing location: multiple reagent strip, microscopy, automated chemical strip, and/or flow imaging.
CPT Codes: 81001 x1, 81003 x1
Test Includes:Appearance, bilirubin, blood, color, glucose, ketones, leukocyte esterase, nitrite, pH, protein, specific gravity, urobilinogen/porphobilinogen.
Turnaround Time:Performed and reported 24 hours/day.
Special Instructions:If the microscopic examination is required regardless of the screen test results, the physician should request LAB3806.
Associated Links:

Urine Collection Procedure, Urinalysis Tests



Collection Instructions

Specimen:Urine, random collection
Optimal Volume:Submit entire collection; analysis requires 1 mL.
Container:Plastic leakproof container, sterile
Alternate Containers: BD Vacutainer Plus Urinalysis Preservative Tube
Collection Instructions:Specimen of choice is a first morning, mid-stream, clean catch urine. Refrigerate the urine if it cannot be delivered immediately.
Causes for Rejection:Collected with preservatives other than BD Vacutainer Plus Urinalysis Preservative tube, stored at room temperature > 2 hours, fecal contamination. Neonatal urine specimens collected on cotton balls.


Processing and Shipping

Specimen Processing:Aliquot 12 mL, 1 mL minimum. Store in refrigerator.
Shipping Instructions:Ship at refrigerated temperature.
Stability:BD Vacutainer Plus Urinalysis Preservative Tube: 72  hours at room temperature or refrigerated
Plastic Leakproof container: 2 hours at room temperature; 24 hours refrigerated
Test Performed at or Referral Lab Urinalysis  (Clinics, CSC Maple Grove, CSC Mpls, Grand Itasca, Lakes, Northland, Range, Ridges, Southdale, UMMC East Bank, UMMC West Bank)


Interpretive

Reference Range:

 

Reflex criteria to run microscopic when UMIR is ordered:

   Bld – tr or higher

   Pro = 10 or higher

   Nit = pos

   Leuk = tr or higher

   Col = color other than straw, light yellow or yellow

   Clear = sl. cloudy or higher

 

pH

5-7

Protein (albumin)

Neg

Protein (albumin) in concentrated specimen

Trace

Blood  (hemoglobin)

Neg

Nitrite

Neg

Leukocyte

Neg

Glucose

Neg

Ketones

Neg

Bilirubin (conjugated)

Neg

Urobilinogens

0.0-2.0 mg/dL

Specific Gravity

Newborn (0-2 d)

Infant (3 d-5 mo)

6 mo and older

 

About 1.012

1.002-1.006

1.003-1.035

 

 

Use:Screen for renal and urinary tract diseases and metabolic diseases.


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