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Urinalysis, Microscopic

Alternative Names/Synonyms	Urinalysis, Urinalysis Routine and Microscopy
Laboratory	Core Laboratory & Transfusion Medicine
Sub-section	Biochemistry
Specimen Type	Urine
Test Code	UAMIC, UAMCN (only immunocompromised patients)

Clinical Significance

Screening for a variety of common diseases or conditions that manifest with urinary abnormalities. Please refer to Urinalysis, Macroscopic for additional ordering practice information.

Specimen Requirements (Sample Type)

Urine

Specimen Requirements (Volume (mL))

2 mL

Specimen Requirements (Tube Type)

UA Preservative Tube
Collection Containers – Tube Types

Collection Requirements

Samples must be collected in UA Preservative Tube.

Sample Stability

Room Temperature: 72 hours

Cause for Rejection

Samples collected in any tubes other than UA Preservative Tube will be rejected.
Specimen Acceptability and Transport Guidance

Instrument, Methodology

Light microscopy

Test Availability

24 hours a day, 7 days a week

STAT Turnaround Time

1 hour

Routine Turnaround Time

1 hour

Reference Ranges

The following formed elements are reported if present:

- Hyaline or Fine Casts
- Coarse Granular Casts
- Heme Granular Casts
- Erythrocyte Casts
- Leukocyte Casts
- Epithelial Casts
- Bacterial Casts
- Waxy Casts
- Leukocytes
- Erythrocytes
- Non-Squamous Epithelial Cells
- Squamous Epithelial Cells
- Calcium Oxalate Crystals
- Cystine Crytals
- Bacteria
- Yeast
- Trichomonads

In case of discrepancies, always interpret results using reference ranges as stated on laboratory reports and/or electronic patient chart.

Laboratory Contact Information

416-586-4800 extension 4688

Ordering Practices

Refer to Urinalysis, Macroscopic for information.