Lab ranges

15 entries

24-hour urine protein — lab reference

Collection completeness must be assessed.

Blood/hemoglobin, urine — lab reference

Ask your clinician to confirm with microscopy; exercise, menstruation, myoglobin, and hemolysis may interfere.

Glucose, urine — lab reference

Renal threshold, SGLT2 inhibitors, pregnancy, and hyperglycemia matter.

Hyaline casts — lab reference

Small numbers may be nonspecific; other cast types require context.

Ketones, urine — lab reference

Fasting, ketogenic diet, vomiting, and diabetes context matter.

Leukocyte esterase — lab reference

Ask your clinician to read this result with microscopy, symptoms, nitrite, and culture.

Nitrite — lab reference

A negative result does not exclude UTI.

Protein, dipstick — lab reference

Dipstick is albumin-biased. Ask your clinician to confirm persistent findings with quantitative ratio.

RBC, microscopy — lab reference

Persistent microscopic hematuria requires risk-based evaluation.

Specific gravity — lab reference

Hydration and concentrating ability affect result.

Urine albumin/creatinine ratio — lab reference

A1 <30; A2 30-300; A3 >300. Persistence ≥3 months matters for CKD classification.

Urine appearance — lab reference

Color and clarity are nonspecific; review medications, hydration, and sediment.

Urine pH — lab reference

Diet, infection, medications, and specimen age affect result.

Urine protein/creatinine ratio — lab reference

Ask your clinician to use laboratory and indication-specific thresholds; consider timed collection when needed.

WBC, microscopy — lab reference

Ask your clinician to read this result with symptoms, culture, contamination, and other sediment findings.

About these ranges

These are Dr. Purser’s adult reference ranges. Units, symptoms and health history matter when you discuss a result with your clinician.