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Red Blood Cell Morphology with Urine Analysis (Comprehensive Hematologic and Urinalysis Profile)

Published: August 9, 2026Updated: August 17, 2026

This test evaluates the shape, size, and health of red blood cells (RBCs) and checks urine for signs of infection, kidney issues, or other conditions.

Quick summary

["It helps diagnose and monitor blood disorders and kidney or urinary tract problems."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 17, 2026Editorial policy

Key facts at a glance

LOINC
99862-5
Short code
Dysmorphic RBC #/area UrnS Comp Assist
Synonyms
Dysmorphic RBC #/area UrnS Comp Assist
Category
chemistry
Sample
urine
Container
Sterile urine container
Units
N/A
Ref low
4.2
Ref high
5.9
Critical range
2 N/A – 7 N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
computer-assisted
CPT
85041
SNOMED
900000000000003001
Specimen volume
10 mL
Stability
Room temperature: 2h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

What This Test Measures

The test includes a detailed examination of red blood cells (RBCs) for abnormalities such as shape (e.g., spherocytes, elliptocytes), size (microcytes, macrocytes), and signs of damage or destruction. It also assesses the presence of certain cells like reticulocytes, which indicate RBC production or breakdown. Additionally, urine analysis checks for protein, blood, glucose, ketones, and microscopic particles like red blood cells or white blood cells, which can signal kidney problems or infections.

Why It’s Done

Doctors order this test to diagnose conditions like anemia, blood disorders (e.g., thalassemia, sickle cell disease), kidney disease, urinary tract infections, or other systemic illnesses. It may also be used for routine health checks or to monitor ongoing treatments.

Common Conditions It Helps Identify

Red blood cell morphology can reveal issues like iron deficiency anemia (small, pale RBCs), hemolytic anemia (fragmented RBCs), or conditions like sickle cell disease (abnormal shapes). Urine analysis can detect kidney damage (proteinuria), urinary tract infections (leukocytes), or diabetes (glucose).

Sample Collection and Preparation

For RBC morphology, a small blood sample is drawn from your arm. For urine analysis, you may provide a midstream urine sample or a 24-hour urine collection, depending on the test requirements. Your healthcare provider will explain the process and any preparation needed.

Reference range

Adult males: 4.2-5.9; Females: 3.8-5.1 x 10^12/LN/A

Specimen: urine

No special preparation required. Stay well hydrated.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Frequently asked questions

What does a red blood cell morphology test tell me about my health?
It provides detailed information about the shape, size, and health of your red blood cells, which can indicate whether you have anemia, blood disorders, or other conditions affecting your blood. Urine analysis complements this by checking for kidney issues or infections.
How long does it take to get results from this test?
Results from RBC morphology and urine analysis are typically available within 1 to 3 business days, depending on lab processing times and whether additional tests are needed.
Can I eat or drink before this test?
For standard urine analysis, you may need to fast or avoid certain foods/drinks (like caffeine or sugary drinks) depending on the specific urine test. Your lab technician or doctor will provide specific instructions for your test.
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 17, 2026. · Read our editorial policy