2026 - Multiple Choice Questions

The best predictor of total lung capacity (TLC) in a healthy child is:
  1. Age
  2. Weight
  3. Body surface area
  4. Height
Activation of phospholipase C by Gq protein couple receptors will cause what change in a cell?
  1. Activation of IP3
  2. Decrease in intracellular calcium
  3. Decrease in protein kinase C
  4. Potassium influx
What vessel in the renal microcirculation does the arcuate artery give rise to?
  1. Interlobular arteries
  2. Efferent arteriole
  3. Segmental arteries
  4. Interlobar arteries
What mechanism does dobutamine primarily use to exert its effect on the AV node?
  1. a beta 1 antagonism
  2. b beta 2 agonism
  3. c beta 1 agonism
  4. d alpha 1 agonism
Compared to plasma, saliva is
  1. Hypertonic with low K+ and high Na+ content
  2. Hypotonic with low K+ and low Na+ content
  3. Hypotonic with high K+ and high Na+ content
  4. Hypotonic with high K+ and low Na+ content
What anatomical region's o2 content does Cc'O2 reflect in the shunt equation?
  1. Equation was provided
  2. a alveolus
  3. b pulmonary artery
  4. c pulmonary end capillary
  5. d pulmonary vein