LPN Pharmacology Practice Test

Correct Answer: D

Rationale: Instructing the client to take nitroglycerin at the first sign of chest pain is crucial for immediate relief of angina symptoms. Nitroglycerin is a fast-acting medication that helps dilate blood vessels, improving blood flow to the heart muscle. Therefore, prompt administration at the onset of chest pain is essential to alleviate anginal episodes effectively. Choices A, B, and C are incorrect because storing the medication properly, taking it as directed, or before meals are not specific instructions for managing acute anginal episodes, which require immediate action for symptom relief.

Correct Answer: C

Rationale: The correct answer is C: Respiratory rate. Monitoring the respiratory rate is the priority assessment for a client receiving morphine due to the risk of respiratory depression. Morphine is a potent opioid that can cause respiratory depression, which is a serious adverse effect that can be life-threatening. Assessing the client's respiratory rate is crucial to detect any signs of respiratory depression early and intervene promptly. Assessing urine output is important but not as critical as monitoring for respiratory depression with morphine. Pupil reaction and bowel sounds are also important assessments but do not take precedence over monitoring the respiratory rate when a client is on morphine.

Correct Answer: C

Rationale: Activated partial thromboplastin time (aPTT) is the laboratory result that should be monitored to evaluate the effectiveness of heparin. Heparin works by prolonging the aPTT, and monitoring this parameter helps ensure the medication's effectiveness and safety in preventing clot formation. Prothrombin time (PT) and International normalized ratio (INR) are used to monitor the effectiveness of warfarin, another anticoagulant. Platelet count is essential to assess platelet function and clotting disorders, but it is not specifically used to monitor heparin therapy.

Correct Answer: D

Rationale: When a client is prescribed furosemide, an important consideration is preventing hypokalemia, a potential side effect of the medication. Furosemide can lead to potassium depletion, so increasing the intake of potassium-rich foods is crucial to maintain adequate potassium levels in the body. Choices A, B, and C are incorrect because muscle pain is not a common side effect of furosemide, monitoring weight daily may not be directly related to the medication, and avoiding grapefruit juice is more relevant for certain medications that interact with grapefruit juice, not furosemide.

Correct Answer: D

Rationale: The correct instruction to include when a client is prescribed furosemide is to expect an increase in urination. Furosemide is a diuretic that works by increasing urine production, so it is essential for the client to anticipate and understand this effect. Monitoring for signs of hypokalemia and increasing potassium-rich foods are not directly related to furosemide use. Hypokalemia is a potential side effect of furosemide, so monitoring for it is crucial. Increasing potassium-rich foods can help counteract potassium loss due to diuretic use. Taking furosemide with food is not required, as it can be taken with or without food.