#Question id: 10973
#Unit 7. System Physiology – Animal
An 11-year-old premenstrual female presents with a painful knee after mild trauma. Upon further evaluation you observe soft tissue bruises. The child is an orphan and there is no family history. The foster mother reports no other problems. The aPTT is prolonged and the PT is normal. A complete hematologic workup would yield
#Question id: 10975
#Unit 7. System Physiology – Animal
A teenaged boy with numerous nosebleeds was referred to a physician for evaluation prior to a minor surgery. His prothrombin time (PT) was 11 sec (11–15 sec normal), partial thromboplastin time (PTT) was 58 sec (25–40 sec normal), and bleeding time was 6.5 min (2–7 min normal). Which of the following is most likely abnormal in this young man?
#Question id: 10974
#Unit 7. System Physiology – Animal
A 63-year-old woman returned to work following a vacation in New Zealand. Several days after returning home, she awoke with swelling and pain in her right leg and her leg was blue. She went immediately to the emergency room where an examination showed an extensive deep vein thrombosis involving the femoral and iliac veins on the right side. Following resolution of the clot, this patient will require which treatment in the future?
#Question id: 10966
#Unit 7. System Physiology – Animal
A
couple requests blood typing of their 2-year-old child (father AB, Rh-negative;
mother B, Rhnegative). Results of hemagglutination assays of the child’s blood
are shown in the next figure. Which of the following conclusions concerning the
child’s parentage is valid?
#Question id: 10956
#Unit 7. System Physiology – Animal
The coagulation pathway that begins with tissue thromboplastin is
#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?