Multiple choice

Hemoglobin estimation is not done by

  1. Drabkin's method

  2. Sahli's method

  3. Spectrometry

  4. Wintrobe's method
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D Correct answer
Explanation

Wintrobe's method is used for ESR and hematocrit determination, not hemoglobin estimation. Drabkin's method converts hemoglobin to cyanmethemoglobin for colorimetric measurement, Sahli's method uses acid hematin formation, and spectrometry directly measures hemoglobin's light absorption.

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