#Question id: 10931
#Unit 7. System Physiology – Animal
A 24-year-old African-American man comes to the
emergency room 3 hr after the onset of severe back and chest pain. These
problems started while he was skiing. He lives in Los Angeles and had a previous
episode of these symptoms 5 years ago while visiting Wyoming. He is in obvious
pain. Laboratory studies show the following:
Hemoglobin
11
gm/dl
Leukocyte
count 22,000/μl3
Reticulocyte count 25%
What is the diagnosis of this patient?
#Question id: 10932
#Unit 7. System Physiology – Animal
A 62-year-old man complains of headaches, visual difficulties, and chest pains. His examination shows a red complexion and a large spleen. His complete blood count follows: hematocrit, 58%, WBC 13,300/μl, and platelets 600,000/μl. His arterial oxygen saturation is 97% on room air. Which of the following would you recommend as a treatment?
#Question id: 10938
#Unit 7. System Physiology – Animal
A 45-year-old woman developed fatigue in July and had blood counts that were reported to be normal. She was hospitalized because of a very severe headache in December, and was found to have a blood pressure of 175/90. Her laboratory values were as follows: hemoglobin (8.3 g/dL), RBC count (2.2 × 10^6/μl), Hct (23%), MCV (89 fL), WBCs (5100/μl), platelets (262 × 10^3/μl), and reticulocyte count 0.8%. What is the diagnosis for this patient?
#Question id: 10939
#Unit 7. System Physiology – Animal
After a person is placed in an atmosphere with low oxygen, how long does it take before there are increased numbers of reticulocytes?
#Question id: 10940
#Unit 7. System Physiology – Animal
Adhesion of white blood cells to the endothelium is
#Question id: 10941
#Unit 7. System Physiology – Animal
In a normal healthy person, which of the following blood components has the shortest life span?