The client is experiencing a drug-drug interaction with streptokinase and another drug. Which other drug can cause a drug- drug interaction with streptokinase?

Correct Answer: C

Rationale: The correct answer is C: Heparin. Streptokinase is a thrombolytic agent used to dissolve blood clots, while Heparin is an anticoagulant that prevents blood clot formation. When used together, they can increase the risk of bleeding due to their combined anticoagulant effects. Cimetidine (A), Theophylline (B), and Digoxin (D) do not typically interact with streptokinase in the same way as Heparin. This is because they have different mechanisms of action and do not directly affect the clotting process.

Correct Answer: B

Rationale: The correct answer is B because the QT segment on an electrocardiogram represents the total time for ventricular depolarization and repolarization. This segment includes the time from the beginning of ventricular depolarization to the end of ventricular repolarization. Choices A, C, and D are incorrect because the QT segment specifically reflects the electrical activity of the ventricles, not the atria. Additionally, choice D is incorrect as it only refers to ventricular depolarization, not the entire process of ventricular repolarization as well.

Correct Answer: C

Rationale: The correct answer is C: Pacemaker. In a third degree AV block, there is a complete block in the electrical conduction between the atria and ventricles, leading to a significant decrease in heart rate. The definitive treatment for this condition is the placement of a pacemaker to ensure proper coordination of atrial and ventricular contractions. Adenosine (A) is used for certain types of supraventricular tachycardia, not for AV blocks. Epinephrine (B) is used in cardiac arrest situations to increase heart rate and blood pressure, not for AV blocks. Dopamine (D) is a medication used to increase blood pressure in hypotensive states, not for AV blocks.

Correct Answer: D

Rationale: The correct answer is D. Switching to 1% milk (A) and incorporating salmon (B) are both heart-healthy choices. Moderate alcohol consumption like a glass of wine (C) is acceptable in TLC diet. However, peanut butter sandwiches can be high in saturated fat and should be limited in coronary artery disease diet, making choice D incorrect. Further teaching is needed to emphasize the importance of avoiding foods high in saturated fats.

Correct Answer: C

Rationale: The correct action is to auscultate for a pericardial friction rub (Choice C). This symptom of chest pain worsening with deep breaths and relieved by leaning forward is indicative of pericarditis, a common complication post-MI. Auscultating for a pericardial friction rub can help confirm this diagnosis. Assessing the feet for pedal edema (Choice A) is more relevant for heart failure. Palpating radial pulses (Choice B) is not directly related to the symptom described. Checking the heart monitor for dysrhythmias (Choice D) may not provide immediate insight into the specific symptom being experienced.