Cardiac output is not affected by __________________?

Related Mcqs:

1. Which of the following cardiac depressants is contraindicated in a patient with cardiac arrhythmia____________?

   A. Lidocaine
   B. Quinidine
   C. Phenytoin
   D. Propranolol

2. Under resting condition the cardiac output is _______ L/ min ?

   A. 2.5
   B. 4.25
   C. 5.25
   D. 9.5

3. Cardiac output in L/min divided by heart rate equals_______________?

   A. Cardiac efficiency
   B. Cardiac index
   C. Mean stroke volume
   D. Mean arterial pressure

4. The following factors increase the cardiac output except______________?

   A. Preload
   B. After load
   C. Heart rate
   D. Myocardial contractility

5. Cardiac output is a measure of______________?

   A. Peripheral resistance X tissue fluid
   B. Peripheral resistance X cardiac rate
   C. Blood pressure X cardiac rate
   D. Heart rate X blood volume

6. Cardiac output is maximum to _________________?

   A. Liver
   B. Brain
   C. Kidney
   D. Heart

7. All the heart valves are open during which stage of cardiac cycle __________________?

   A. Systolic ejection
   B. Isovolumetric relaxation
   C. Isovolumetric contraction
   D. None of the above

8. Cardiac index is related to ______________?

   A. cardiac output and body weight
   B. Cardiac output and body surface area
   C. Cardiac output and work of the heart
   D. Stroke volume and pulse rate

9. Cardiac cycle duration in man is_______________?

   A. 0.4 seconds
   B. 0.8 seconds
   C. 1.2 seconds
   D. 1.6 seconds

10. Cardiac muscle contracts due to______________?

    A. Extracellular Ca+2
    B. Sarcoplasmic ca+2
    C. Extracellular Na+
    D. Intracellular Na+