| |
|
Click on the first letter in the test name:
Erythrocyte count Article
|
|
Erythrocyte count hemoglobin cbc
Definition
An RBC count is a blood test that tells how many red blood cells (RBCs) you have.
RBCs contain hemoglobin, which carries oxygen. How much oxygen your body tissues get depends on how many RBCs you have and how well they work.
Alternative Names
Erythrocyte count; Red blood cell count
Why the Erythrocyte count is Performed
This test can help diagnose anemia and other conditions affecting red blood cells.
The RBC count is almost always part of the CBC (complete blood count) test.
How the Erythrocyte count is Performed
Blood is drawn from a vein, usually on the inside of the elbow or the back of the hand. The puncture site is cleaned with antiseptic, and an elastic band is placed around the upper arm to apply pressure and restrict blood flow through the vein. This causes veins below the band to fill with blood.
A needle is inserted into the vein, and the blood is collected in an air-tight vial or a syringe. During the procedure, the band is removed to restore blood flow. Once the blood has been collected, the needle is removed, and the puncture site is covered to stop any bleeding.
For an infant or young child:
The area is cleansed with antiseptic and punctured with a sharp needle or a lancet. The blood may be collected in a pipette (small glass tube), on a slide, onto a test strip, or into a small container. Cotton or a bandage may be applied to the puncture site if there is any continued bleeding.
How to Prepare for the Erythrocyte count
No special preparation is necessary for adults.
How the Erythrocyte count Will Feel
When the needle is inserted to draw blood, some people feel moderate pain, while others feel only a prick or stinging sensation. Afterward, there may be some throbbing.
Veins and arteries vary in size from one patient to another and from one side of the body to the other. Obtaining a blood sample from some people may be more difficult than from others.
Risks
- Excessive bleeding
- Fainting or feeling light-headed
- Hematoma (blood accumulating under the skin)
- Infection (a slight risk any time the skin is broken)
- Multiple punctures to locate veins
Considerations
Pregnancy can cause a decrease in RBCs.
Your RBC count will increase for several weeks when you move to a higher altitude. Dehydration also increases the RBC count.
Drugs can increase the RBC count include:
Drugs that can decrease the RBC count include:
- Chloramphenicol
- Hydantoins
- Quinidine
Normal Results
Normal results vary, but in general the range is as follows:
- Male: 4.7 to 6.1 million cells per microliter (cells/mcL)
- Female: 4.2 to 5.4 million cells/mcL
What Abnormal Results Mean
Damaged RBCs do not live as long as normal. Injury inside the blood vessels, such as that caused by artificial heart valves or peripheral blood vessel disease, can damage RBCs.
Higher-than-normal numbers of RBCs may be due to:
- Congenital heart disease
- Cor pulmonale
- Dehydration (such as from severe diarrhea)
- Pulmonary fibrosis
- Polycythemia vera
Lower-than-normal numbers of RBCs may be due to:
- Anemia (various types)
- Bone marrow failure (for example, from radiation, toxin, or tumor)
- Erythropoietin deficiency (secondary to kidney disease)
- Hemolysis (RBC destruction) from transfusion reaction
- Hemorrhage (bleeding)
- Leukemia
- Malnutrition
- Multiple myeloma
- Nutritional deficiencies of:
- Iron
- Copper
- Folate
- Vitamin B-12
- Vitamin B-6
- Overhydration
Additional conditions under which the test may be performed:
- Alport syndrome
- Drug-induced immune hemolytic anemia
- Hemolytic anemia due to G6PD deficiency
- Hereditary anemias, such as thalassemia
- Idiopathic autoimmune hemolytic anemia
- Immune hemolytic anemia
- Macroglobulinemia of Waldenstrom
- Paroxysmal nocturnal hemoglobinuria (PNH)
- Primary myelofibrosis
- Renal cell carcinoma
Email to a Friend
Typical mistypes for Erythrocyte count
wrythrocyte count, srythrocyte count, drythrocyte count, rrythrocyte count, 4rythrocyte count, 3rythrocyte count, eeythrocyte count, edythrocyte count, efythrocyte count, etythrocyte count, e5ythrocyte count, e4ythrocyte count, ertthrocyte count, ergthrocyte count, erhthrocyte count, eruthrocyte count, er7throcyte count, er6throcyte count, eryrhrocyte count, eryfhrocyte count, eryghrocyte count, eryyhrocyte count, ery6hrocyte count, ery5hrocyte count, erytgrocyte count, erytbrocyte count, erytnrocyte count, erytjrocyte count, eryturocyte count, erytyrocyte count, erytheocyte count, erythdocyte count, erythfocyte count, erythtocyte count, eryth5ocyte count, eryth4ocyte count, erythricyte count, erythrkcyte count, erythrlcyte count, erythrpcyte count, erythr0cyte count, erythr9cyte count, erythroxyte count, erythrovyte count, erythrofyte count, erythrodyte count, erythroctte count, erythrocgte count, erythrochte count, erythrocute count, erythroc7te count, erythroc6te count, erythrocyre count, erythrocyfe count, erythrocyge count, erythrocyye count, erythrocy6e count, erythrocy5e count, erythrocytw count, erythrocyts count, erythrocytd count, erythrocytr count, erythrocyt4 count, erythrocyt3 count, erythrocyte xount, erythrocyte vount, erythrocyte fount, erythrocyte dount, erythrocyte ciunt, erythrocyte ckunt, erythrocyte clunt, erythrocyte cpunt, erythrocyte c0unt, erythrocyte c9unt, erythrocyte coynt, erythrocyte cohnt, erythrocyte cojnt, erythrocyte coint, erythrocyte co8nt, erythrocyte co7nt, erythrocyte coubt, erythrocyte coumt, erythrocyte coujt, erythrocyte couht, erythrocyte counr, erythrocyte counf, erythrocyte coung, erythrocyte couny, erythrocyte coun6, erythrocyte coun5, rythrocyte count, eythrocyte count, erthrocyte count, eryhrocyte count, erytrocyte count, erythocyte count, erythrcyte count, erythroyte count, erythrocte count, erythrocye count, erythrocyt count, erythrocytecount, erythrocyte ount, erythrocyte cunt, erythrocyte cont, erythrocyte cout, erythrocyte coun, reythrocyte count, eyrthrocyte count, ertyhrocyte count, eryhtrocyte count, erytrhocyte count, erythorcyte count, erythrcoyte count, erythroycte count, erythroctye count, erythrocyet count, erythrocyt ecount, erythrocytec ount, erythrocyte ocunt, erythrocyte cuont, erythrocyte conut, erythrocyte coutn, eerythrocyte count, errythrocyte count, eryythrocyte count, erytthrocyte count, erythhrocyte count, erythrrocyte count, erythroocyte count, erythroccyte count, erythrocyyte count, erythrocytte count, erythrocytee count, erythrocyte count, erythrocyte ccount, erythrocyte coount, erythrocyte couunt, erythrocyte counnt, erythrocyte countt, etc.
|
|
|
|
|
|
