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125084 Pathology

A 40-year-old man has been infected with HIV for the past 10 years. During this time, he has had several bouts of oral candidiasis, but no major illnesses. He is now diagnosed with Kaposi sarcoma involving the skin. He has had a 7-kg weight loss in the past 6 months. Laboratory studies show the HIV-1 RNA viral load is currently 60,000 copies/mL. Which of the following types of cells is most depleted in his lymph nodes?

ACD4+ lymphocyte
BCD8+ lymphocyte
CCD19+ lymphocyte
DMacrophage
Pathology
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125087 Physiology

In a study to measure BP, two students Rakesh and Arif conduct a study on a dog. Rakesh measures BP using a mercury sphygmomanometer on the right femoral artery and Arif measures using a pressure transducer and pulse tracing on the left femoral artery. The mean arterial pressure for both Rakesh and Arif is the same i.e. 100 mmHg. After 5 minutes of injection of adrenaline, Rakesh measures blood pressure 130 mmHg and Arif as 120 mmHg. The difference of 10 mmHg is explained by

AFalsely high values at low pressure in pulse tracing
BFalsely low values at high pressure in pulse tracings
CFemoral artery is more sensitive to adrenaline on right side
DVentricular filling affects diastole period
Physiology
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