An athlete is used to performing high-intensity aerobic exercise; however, she will now be changing to longer-duration, submaximal exercise on a regular basis. This change in training strategy will typically result in what changes concerning energy supply?
Read DetailsA 49-year-old woman was admitted to the hospital after experiencing recurrent episodes of shortness of breath, severe headache, sweating, and abdominal pain. These episodes occurred primarily during physical exertion. Vitals were taken and included a BP recording of 160/95 mm Hg. She underwent a series of exams including imaging studies that showed a tumor on her adrenal medulla. When this tumor suddenly releases a large amount of epinephrine into the circulation, the patient’s heart rate would be expected to
Read DetailsA 45-year-old woman comes to her family physician for a yearly checkup. Her BP is noted to be the same while lying or while standing. What changes in preload and heart rate most likely occur in going from lying to standing positions?
Read DetailsA 60-year-old woman comes to her physician for routine checkup. She has a history of MI 7 years previously but currently has no complaints or symptoms. She undergoes an echocardiogram. Which measurement would be the best index of preload in this woman?
Read DetailsThe pressure in a capillary in skeletal muscle is 35 mm Hg at the arteriolar end and 14 mm Hg at the venular end. The interstitial pressure is 0 mmHg. The colloid osmotic pressure is 25mm Hg in the capillary and 1 mm Hg in the interstitium. The net force producing fluid movement across the capillary wall at its arteriolar end is.
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