Introduction to Human Disease: Pathophysiology for Health Professionals 6th Edition by Agnes Loeffler,Michael Hart

Exercise 1

In a patient with severe shortness of breath and pallor, you notice petechiae on the skin of her neck and arms. Which of the following would be the most important laboratory tests to order first?
A) Hemoglobin, white blood cell count, and platelet count
B) Bone marrow biopsy and hemoglobin
C) Reticulocyte count and platelet count
D) Platelet count and serum immunoglobulin level