List of top Physiology Questions

A woman presenting with amenorrhea and galactorrhea is diagnosed with a pituitary adenoma and elevated prolactin levels. What is the most likely cause of her amenorrhea?
What acid-base disturbance is expected in a person trekking at high altitude due to hyperventilation?
A patient presents with fatigue, muscle cramps, and strong salt cravings. What is the most likely diagnosis?
In the sarcomere length--tension relationship curve, at which point is the maximum active tension generated due to optimal overlap between actin and myosin filaments?
In an experimental study, blood glucose levels were elevated to 2--3 times the normal and maintained at that level. What is the most likely pattern of insulin secretion in response?
A patient flying to high altitude of 3700 m develops headache, nausea, dyspnea, and dizziness. What explains these symptoms?
A patient has the following Starling forces measured at the capillary level: capillary hydrostatic pressure = 18 mmHg, capillary oncotic pressure = 27 mmHg, interstitial oncotic pressure = 7 mmHg. If there is no net movement of fluid across the capillary wall, what is the value of the interstitial hydrostatic pressure?
In a patient with pulmonary embolism causing complete obstruction of blood flow, which point on the V/Q graph indicates the effect of pulmonary embolism?
On day 21 of a 28-day menstrual cycle, which hormone profile is correct?
A 50-year-old man presents with altered sensorium and deep labored breathing. ABG shows: pH \(7.20\), \(pCO_2 = 35\) mmHg, \(HCO_3^- = 16\) mEq/L, \(Na^+ = 130\) mEq/L, \(Cl^- = 84\) mEq/L, \(PaO_2 = 80\) mmHg. What is the most likely acid-base abnormality?
Which hormone is elevated in Addison's disease, leading to hyperpigmentation?
A 45-year-old man is evaluated for electrolyte imbalance: \(Na^+ = 130\) mmol/L, \(Cl^- = 84\) mmol/L, \(HCO_3^- = 16\) mmol/L. What is his anion gap?