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Serum/plasma qualitative dipstick test for red blood cells and white blood cells (leukocytes)

Published: August 9, 2026Updated: August 16, 2026

This test checks for the presence of red blood cells (RBCs) or white blood cells (WBCs) in your urine using a dipstick. It helps identify signs of bleeding or infection.

Quick summary

["A positive result may signal urinary tract issues or other health concerns needing further evaluation."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
77655-9
Short code
Dipl cells NFr Cells.XXX FC
Synonyms
Dipl cells NFr Cells.XXX FC
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
flow-cytometry
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What This Test Measures

The dipstick detects specific chemical markers left behind by RBCs and WBCs when they pass through your urine. If these markers are present, the test strip will change color, confirming abnormal cells.

Why It’s Done

Doctors may order this test to investigate symptoms like blood in urine (hematuria), frequent urination, pain during urination, or fever that could indicate infections (e.g., cystitis, pyelonephritis) or other conditions like kidney stones.

When to Follow Up

If your test shows abnormal results, your healthcare provider will likely recommend additional testing, such as a urine culture or imaging studies, to determine the cause.

Common Causes of Positive Results

Positive results for RBCs or WBCs in urine can occur due to urinary tract infections, kidney stones, bladder or kidney inflammation, or trauma to the urinary system. Other conditions, like certain cancers or autoimmune diseases, may also be linked.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

While this test is a quick screening tool, it cannot always pinpoint the exact cause of abnormal cells. Positive results often prompt further diagnostic workup to identify underlying issues, such as infections, structural problems, or systemic conditions.

Short name

Dipstick RBC/WBC qualitative urine test

Frequently asked questions

What does a positive dipstick test mean for me?
A positive result means your urine may contain abnormal cells, which could signal an infection, bleeding, or another issue. Your doctor will guide you on next steps, such as follow-up tests or treatments.
Will I need to prepare for this test?
No special preparation is needed. You may collect a midstream urine sample in a clean container or use a urine collection device provided by your healthcare provider.
Can I take this test at home?
Yes, some pharmacies or clinics offer at-home dipstick urine tests for RBCs/WBCs, but results should be reviewed by a healthcare professional for accurate interpretation.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

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 16, 2026. · Read our editorial policy