Wednesday, August 4, 2010
Mean Corpuscular Hemoglobin (MCH)
Introduction
MCH is calculated as Hb divided by total RBC count.
Normal range
Adults – 27-31Pg
New born – 33- 39Pg
Indications
Limited value in differential diagnosis of anemias; Used for instrument calibration.
Increased in
Macrocytic anemia, infants and newborns, marked leukocytosis( > 50,000/cu.mm),cold agglutinins, in vivo hemolysis, monoclonal proteins in blood, high heparin concentration, lipemia.
Decreased in
Microcytic and normocytic anemias.
Causes of lymphocytosis (> 4000/cumm in adults, > 7200/cumm adolescents, > 9000/cumm in children and infants)
Causes of lymphocytosis (> 4000/cumm in adults, > 7200/cumm adolescents, > 9000/cumm in children and infants)
Infection (Pertusis, infectious, lymphocytosis, infectious hepatitis, cytomegalovirus (CMV) infections, mumps, rubella, varicella, toxoplasmosis, chronic tuberculosis),
Others like thyrotoxicosis,
Addison's disease,
neutropenia with relative lymphocytosis,
lymphatic leukemia,
Crohn's disease,
ulcerative colitis and
infancy (normal count 40- 60 %) called relative lymphocytosis.
Sunday, August 1, 2010
Mean Corpuscular Volume (MCV)
Saturday, July 31, 2010
Total Erythrocyte Count (RBC Count)
Normal range (x 106cumm) | ||
Adult Males | Adult Females | Newborn |
4.7- 6.0 | 4.2 –5.4 | 4.1-6.7 |
Hemoglobin Decreased In
Hemoglobin Decreased in
All pathological causes of anemia;Hemoglobin Increased In
Hemoglobin Increased in
Chronic hypoxia of bone marrow due to exercise or any cardio respiratory disorder;Friday, July 30, 2010
Hemoglobin (Hb) Nomal Values
Hemoglobin (Hb)
Normal range (g/dl) | ||||
Males | Females | Newborn | 3Months | 1Years |
13.5-18 | 12.5-16 | 15-24 | 10.5 | 12.5 |
Complete Blood Count CBC
Hb,
TLC,
DLC,
RBC count
ESR
MCV
MCHC
MCH
Platelet Count
PCV
Peripheral Smear