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HESI RN · HESI Pharmacology · Hematology drugs

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

A patient shows prolonged prothrombin time and activated partial thromboplastin time. Blood test otherwise is normal. Which of the following is the most probably diagnosis for this patient's condition?

A. Hemophilia A

B. Thrombocytopenia

C. Von Willebrand factor disease

D. Vitamin K deficiency

Expert Explanatory Rationale

Correct Answer: Vitamin K deficiency

Question 2 of 5

The anticoagulant effects of heparin can be promptly arrested by administration of

A. Epsilon amino caproic acid

B. Protamine sulfate

C. Adrenaline

D. Vitamin K

Expert Explanatory Rationale

Correct Answer: Protamine sulfate

Question 3 of 5

A nurse is reinforcing teaching with a client who is going to take an expectorant to manage a cough. The nurse should explain that this type of medication treats coughs by which of the following mechanisms?

A. Reduces inflammation

B. Suppresses the urge to cough

C. Dries mucous membranes

D. Stimulates secretions

Expert Explanatory Rationale

Correct Answer: Stimulates secretions

Question 4 of 5

Platelet aggregation is an important event in haemostasis. Which of the following statement is true for platelet aggregation in vascular injury?

A. There will be initial vasodilation

B. Clotting factors play no role in its formation

C. Platelets change their shape during the process

D. Serotonin stimulates platelet aggregation

Expert Explanatory Rationale

Correct Answer: Platelets change their shape during the process

Question 5 of 5

A peripheral blood smear showing increase in numbers of neutrophils, band cells, basophils, eosinophils and platelets is most suggestive

A. Acute myeloid leukaemia

B. Active lymphoid leukaemia

C. Chronic myelocytic leukaemia

D. The LAP score is high

Expert Explanatory Rationale

Correct Answer: Chronic myelocytic leukaemia

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