Myocardial Infarction

Question 1

What are the causes of Myocardial Infarction?

Answer 1

Untreated Coronary Artery Disease and Angina Pectoris

Question 2

What can lactic acid cause?

1.
2. Lactic acid irritates the nerve
3. Heart Muscle Injury

Answer 2

Lactic acid increases acidosis in blood

Question 3

What can lactic acid cause?

1. Lactic acid increases acidosis in blood
2. Lactic acid irritates the nerve
   3.

Answer 3

Heart Muscle Injury

Question 3

What can lactic acid cause?

1. Lactic acid increases acidosis in blood
3. Heart Muscle Injury

Answer 3

Lactic acid irritates the nerve

Question 4

Why is acidosis dangerous for the blood?

Answer 4

Can cause hemolysis causing a further decrease in oxygen (hemolysis cascade)

Question 5

Where is the pain found in MI?

Answer 5

Substernal, radiates to the jaw, arms, and entire back

Question 6

What is the description of pain in MI?

Answer 6

Crushing pain

Question 7

What else do patients with MI feel?

Answer 7

Impending doom

Question 8

What are three other manifestations of MI?

Answer 8

Diaphoresis, cold clammy skin, and restlessness

Question 9

What are the three cardiac markers that indicate MI?

Answer 9

1. Creatine phosphokinase
2. Creatine phosphokinase - myoglobin
3. Troponin

Question 10

What is one of the reasons why patients have silent MI?

Answer 10

Diabetes causes neuropathy leading to a decreased feeling of pain

Question 11

What is the painkiller DOC for MI patients?

Answer 11

Morphine sulfate

Question 12

What should the nurse WOF when giving morphine sulfate?

Answer 12

Respiratory depression

Question 13

What is the antidote to morphine sulfate?

Answer 13

Naloxone

Question 14

What are other management techniques for MI patients?

Answer 14

1. High flow O2
2. Nitroglycerin
3. Thrombolytics
4. Thromolytics together with Aspirin

Question 15

What occurs in the ventricles?

Answer 15

Ventricles contract harder to compensate causing ST elevation and Vtach