What is the most common cause of pedal edema?

What is the most common cause of pedal edema?
 
  a. Liver failure
  b. Kidney failure
  c. Heart failure
  d. Electrolyte imbalances

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Q. 2  What change in the patient's respiratory breathing pattern is commonly seen with significant fe-ver?
 
  a. Slower rate
  b. More rapid rate
  c. More prolonged expiratory time
  d. More prolonged inspiratory time

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Q. 3  What term is used to describe the chest pain associated with blockage of the coronary arteries?
 
  a. Angina
  b. Myocarditis
  c. Myalgia
  d. Infarction

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Q. 4  Which of the following are critical elements of a patient's past medical history? 1. Childhood diseases 2. Prior major illnesses or surgery 3. Marital status 4. Drugs and immunizations
 
  a. 1 and 2 only
  b. 1 and 3 only
  c. 1, 2, and 3 only
  d. 1, 2, and 4 only