Miscellaneous

Question 0

What’s is the difference between the following:

1) Inotropic
2) Chronotropic
3) Dromotropic

Answer 0

1) Inotropic - Increases contractility
2) Chronotropic - Increases Heart rate
3) Dromotropic - Increases conduction

Question 1

When the heart begins to fail, the body responds with which three compensatory mechanisms to maintain blood flow to the tissues?

Answer 1

1) Sympathetic nervous system activation
2) Increased preload
3) Hypertrophy of the cardiac cells

Question 2

Why should a patient with respiratory failure limit his or her intake of Carbohydrates?

Answer 2

Because carbohydrate metabolism produces CO2, which further complicates their respiratory failure.

Question 3

Define Uremia and explain how how kidney failure is responsible for this condition?

Answer 3

Uremia is a build of substances (i.e., BUN and creatinine) in the blood, that would normally be excreted in the urine, but can’t be excreted if the kidneys aren’t working properly.

Question 4

Describe the 3 phases of acute renal failure.

Answer 4

1) Oliguric
2) Diuretic
3) Recovery

Question 5

Wy should corticosteroids (i.e., Prednisone) always be taken with food?

Answer 5

Corticosteroids are very irritating to the GI tract. If they are not taken with food, it can cause stomach ulcers and bleeding.