What is the appropriate action when a patient presents with chest pain?

Correct Answer: A

Rationale: The appropriate action when a patient presents with chest pain is to administer aspirin. Aspirin helps reduce the risk of clot formation by inhibiting platelet aggregation, which can be beneficial in cases of myocardial infarction. Nitroglycerin is commonly used for chest pain related to angina but is not the first-line treatment for all types of chest pain. Repositioning the patient may be necessary for comfort or assessment but is not the immediate priority. Surgery is not typically the first-line intervention for chest pain unless there are specific indications.

Correct Answer: A

Rationale: The correct answer is to observe for facial expressions when assessing pain in a non-verbal patient. Facial expressions can provide vital clues about the patient's pain level and discomfort. Choices B and C, observing for restlessness and sweating, can be less specific and may indicate other issues besides pain. Choice D, checking for non-verbal cues, is too broad and does not specify the crucial aspect of focusing on facial expressions.

Correct Answer: A

Rationale: The correct answer is A: Hypokalemia. Furosemide, a loop diuretic, commonly causes the loss of potassium in the urine, leading to hypokalemia. This electrolyte imbalance can result in various complications such as cardiac arrhythmias and muscle weakness. Choice B, Hyponatremia, is not typically associated with furosemide use. Choice C, Hyperkalemia, is the opposite of the expected electrolyte imbalance caused by furosemide. Choice D, Hypercalcemia, is not a common side effect of furosemide.

Correct Answer: A

Rationale: The correct answer is to monitor aPTT in patients receiving heparin therapy. Activated Partial Thromboplastin Time (aPTT) is crucial to assess the therapeutic effectiveness of heparin and to prevent bleeding complications. Monitoring INR (Choice B) is more relevant for patients on warfarin therapy, not heparin. Platelet count (Choice C) monitoring is essential for detecting heparin-induced thrombocytopenia rather than assessing heparin therapy itself. Monitoring sodium levels (Choice D) is not directly related to heparin therapy monitoring.

Correct Answer: A

Rationale: The correct answer is to monitor INR for a patient on warfarin therapy. INR monitoring is crucial as it helps assess the therapeutic effectiveness and safety of warfarin. INR stands for International Normalized Ratio, and it measures the blood's ability to clot. Monitoring potassium levels (Choice B) is not specific to warfarin therapy. Monitoring platelet count (Choice C) is important but not the primary lab value for assessing warfarin therapy. Monitoring sodium levels (Choice D) is not directly related to warfarin therapy.