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Normal range of MCHC is

  • A.10 ±5 gm%
  • B.25 ±2 gm%
  • C.35 ±3 gm%
  • D.40 ±3 gm%

Answer: C

Correct answer: 35 ±3 gm%

MCHC normally runs at about 32-38 g/dL, that is 35 ± 3. It cannot rise much above that, because the red cell is already close to saturated with haemoglobin - which is why a value below the range (hypochromia, as in iron deficiency) is common while a high one usually means spherocytosis or an artefact.

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