A 58-year-old woman complains of spontaneous bruises, weakness, bleeding gums, dizziness. Objectively: the mucous membranes and skin are pale with numerous hemorrhages of various time of origin. Lymph nodes are not enlarged. Heart rate - 100/min., BP- 110/70 mm Hg. There are no changes of internal organs. Blood test results: RBC-3,0 × 1012/l, Hb- 92 g/l, colour index - 0,9, anisocytosis, poikilocytosis, WBC - 10 × 109/l, eosinophils - 2%, stab neutrophils - 12%, segmented neutrophils - 68%, lymphocytes - 11%, monocytes - 7%, ESR - 12 mm/hour. What index should be determined additionally by a laboratory to make a diagnosis?

Question

Answer options

Platelets
Reticulocytes
Osmotic resistanceof erythrocytes
Clotting time
Fibrinogen

Correct answer

Platelets

Explanation

This is obviously a person suffering from hemophilia (a bleeding disorder) and hence platelets count needs to be determined before other tests. From the blood test results, almost are parameters are in the normal range so to confirm the disorder, platelets must be known as well.

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