A) Increased ADH secretion B) Decreased glomerular filtration rate C) Osmotic diuresis from glucosuria D) Inhibition of sodium reabsorption in the loop of Henle
Explanation: Hyperglycemia exceeds renal glucose reabsorption threshold → glucose in tubules → osmotic retention of water → increased urine output. ganong physiology mcq pdf
Explanation: SA node pacemaker activity relies on the hyperpolarization-activated funny current (If) – mixed Na+/K+ inward current, plus decreasing outward K+ current. plus decreasing outward K+ current.