Which of the following disorders can cause an increase in ...

[tuffie]

Which of the following disorders can cause an increase in systemic vascular resistance?
 
  a. Lung collapse
  b. Hypervolemia
  c. Chronic bronchitis
  d. Cardiogenic pulmonary edema

Question 2

Which of the following hemodynamic parameter that is not within normal limits?
 
  a. Cardiac index (CI) = 4 L/min/m2
  b. Mixed venous oxygen content (CO2) = 10 vol
  c. Mean arterial pressure (MAP) = 18 mm Hg
  d. Pulmonary vascular resistance (PVR) = 200 dyne  sec  cm5

[heinisk01]

Answer to Question 1

ANS: B
Chronic obstructive pulmonary disease (COPD) does not, in and of itself, cause an increase in systemic vascular resistance. Cardiogenic pulmonary edema and lung collapse will decrease sys-temic vascular resistance. Hypovolemia will cause an increase in systemic vascular resistance due to stimulation of the baroreceptor reflex.

Answer to Question 2

ANS: C
The normal values for the hemodynamic parameters in this question are: Cardiac index (CI) = 2.5-4 L/min/m2, mixed venous oxygen content (CO2) = 15 vol, mean arterial pressure (MPAP) = 10-20 mm Hg, and pulmonary vascular resistance (PVR) =100-250 dyne  sec  cm5. The value that is not within normal limits is the CO2.

[tuffie]

Thanks for the timely response, appreciate it

[helenmarkerine]

Excellent