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Red Blood Cell Count (Manual Qualitative Analysis of Cell Number)

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

This test measures the number of red blood cells in your blood using a manual method to check for conditions like anemia or other blood-related issues.

Quick summary

["Red blood cell count helps diagnose and monitor blood disorders."]

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

Key facts at a glance

LOINC
14331-3
Short code
RBC Stl Manual-aCnc
Synonyms
RBC Stl Manual-aCnc
Category
chemistry
Sample
stool
Container
Clean 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
manual-count
CPT
85041
SNOMED
900000000000003001
Specimen volume
5 g
Stability
Refrigerated: 24h, Frozen: 7d
TAT
4–24 hours
Order
routine

Why Is This Test Done?

Doctors may order this test to evaluate your overall health, diagnose anemia (low red blood cell count), or check for conditions like polycythemia (high red blood cell count). It can also be used during pregnancy, before surgeries, or to monitor chronic diseases.

What Does the Test Involve?

A small blood sample is taken from a vein in your arm. The lab then manually examines the sample under a microscope to count the red blood cells.

What Are the Possible Results?

Results are qualitative (descriptive rather than numerical) and may indicate whether your red blood cell count is within normal limits, too low, or too high based on the manual cell density observed.

What Does a Low or High Red Blood Cell Count Mean?

A low red blood cell count may suggest anemia, blood loss, or other health issues like kidney disease or nutritional deficiencies. A high count might indicate conditions like dehydration, polycythemia, or lung disease.

Reference range

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

Specimen: stool

No special preparation required. Stay well hydrated.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

RBC Count (Manual)

Frequently asked questions

What causes a red blood cell count to be abnormal?
Abnormal red blood cell counts can result from various factors, including chronic diseases, nutritional deficiencies (like iron or vitamin B12), blood loss, or certain medications. Genetic conditions and infections can also play a role.
How often should I get this test?
The frequency depends on your health status, symptoms, and medical needs. Your healthcare provider will determine how often you need this test based on your individual situation.
Can I prepare for this test?
No special preparation is needed for this test. However, inform your doctor about any medications or conditions you have before the procedure.
  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 17, 2026. · Read our editorial policy