Here are the answers to the sample questions. If anything seems fishy, so to speak, please let me know!

1. B

From these lab results alone, no further course is indicated. A HDL above 60 mg/dl is considered good, as well as an LDL level below 100 mg/dl.

2. C

Vitamin K is an antagonist to Warfarin (Coumadin).

3. A

The symptoms combined with the diastolic murmur point to mitral valve stenosis. Dowager's is a term associated with a hump and osteoporosis.

4. C

The sinoatrial node generates 60-100 electrical impulses per minute.

5. B

Though the procedure protocol can vary depending on where it is done, typically cardiac catheterization requires fasting for a longer period beforehand.

6. D

The term neointimal hyperplasia refers to the regrowth of tissue after a procedure due to aggravation. In angioplasties, this can result in the vessel being blocked again despite initial success in clearing space.

7. D

A transcutaneous pacemaker can be used to temporarily control sinus bradycardia that presents with shock that doesn't respond to atropine.

8. B

In cardioversion, the heart still has a rhythm and so the shocks are synchronized. Defibrillation is done when there is no pulse such as ventricular fibrillation and is generally asynchronous.

9. B

A synchronous pacemaker is designed to activate "on-need." It helps the heart while attempting to interfere as little as possible.
This approach does not work in all cases, of course. Sometimes constant stimulation is needed.

10. A

Endocarditis can be caused by bacteria migrating from the mouth. Good dental hygiene can lower the risk.

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