What is indices in CBC?
Red blood cell (RBC) indices are part of the complete blood count (CBC) test. They are used to help diagnose the cause of anemia, a condition in which there are too few red blood cells. The indices include: Average red blood cell size (MCV) Hemoglobin amount per red blood cell (MCH)
How do you calculate RBC indices?
RBC is per million cells. MCV = Hct × 10/RBC (84-96 fL) •Mean corpuscular Hb (MCH) = Hb × 10/RBC (26-36 pg) •Mean corpuscular Hb concentration (MCHC) = Hb × 10/Hct (32-36%) A rapid method of determining whether cellular indices are normocytic and normochromic is to multiply the RBC and Hb by 3.
How will you determine PCV and enumerate the calculation methods of red cell indices?
- Mean corpuscular volume (MCV) = PCV/RBC X10. Normal value – 92 ± 9 fl.
- Mean corpuscular hemoglobin concentration (MCHC) = Hb/PCVX100.
How is CBC count calculated?
Mean corpuscular hemoglobin (MCH) is the average hemoglobin content of a single RBC. It is the calculated by dividing hemoglobin by the RBC count….Complete Blood Count (CBC)
| Parameter | Reference Range | Critical Value |
|---|---|---|
| RDW | 11.5-14.5% | |
| Platelet Count | 140,000 – 400,000/uL | <30,000/uL >1 million/uL |
What hematology values are used to calculate the indices?
Red cell indices can be calculated if the values of hemoglobin, hematocrit (packed cell volume), and red blood cell count are known.
How do you solve for MCH?
MCH is obtained by dividing the amount of hemoglobin in a blood sample by the amount of red blood cells and then multiplying the result by 10. The preferred measurement unit is the picogram (pg), which is equivalent to 10-12 grams. The normal MCH values are between 27 and 35 pg.
How do you calculate hemoglobin concentration?
Calculated hemoglobin: The ADVIA back-calculates a hemoglobin (calculated hemoglobin) from the CHCM (i.e. calculated hemoglobin = (CHCM x MCV x RBC count) ÷ 1000.
How is PCV calculated?
The PCV test is calculated with the help of an automated analyser which means that it isn’t directly measured. By multiplying the red cell count with the mean cell volume, doctors get the final amount.
What is PLT in blood test?
A platelet count is a test that measures the number of platelets in your blood. Platelets are cells that help your blood clot. Too few platelets can be a sign of cancer, infections or other health problems. Too many platelets put you at risk for blood clots or stroke.