ATI LPN
LPN Pharmacology
1. A hypertensive client who has been taking metoprolol (Lopressor) has been prescribed to decrease the dose of the medication. The client asks the nurse why this must be done over a period of 1 to 2 weeks. In formulating a response, the nurse incorporates the understanding that abrupt withdrawal could affect the client in which way?
- A. Result in hypoglycemia
- B. Give the client insomnia
- C. Precipitate rebound hypertension
- D. Cause enhanced side effects of other prescribed medications
Correct answer: C
Rationale: Abruptly stopping metoprolol can lead to rebound hypertension, causing a sudden increase in blood pressure due to the sudden withdrawal of the medication. Gradually tapering the dose helps the body adjust and reduces the risk of this adverse effect. Choices A, B, and D are incorrect. Stopping metoprolol suddenly is not known to result in hypoglycemia, insomnia, or enhanced side effects of other medications.
2. A client with chronic obstructive pulmonary disease (COPD) is prescribed a metered-dose inhaler (MDI) with a spacer. Which instruction should the nurse reinforce to ensure correct use?
- A. Inhale deeply and slowly after activating the MDI.
- B. Hold the breath for 5 seconds after inhaling the medication.
- C. Rinse the mouth immediately after using the MDI.
- D. Exhale fully before placing the mouthpiece in the mouth.
Correct answer: A
Rationale: Inhaling deeply and slowly after activating the MDI is the correct instruction to ensure effective delivery of the medication to the lungs. This technique helps the medication reach the lower airways where it can be most beneficial in managing COPD symptoms. Inhaling too quickly or not deeply enough may result in improper drug delivery and reduce the effectiveness of the treatment. Holding the breath for 5 seconds after inhaling the medication (Choice B) may not be necessary and could cause discomfort without additional benefits. Rinsing the mouth immediately after using the MDI (Choice C) is not necessary unless specified by the healthcare provider. Exhaling fully before placing the mouthpiece in the mouth (Choice D) is not ideal as it may result in inadequate medication delivery to the lungs.
3. A client has a new prescription for nitroglycerin. Which of the following instructions should the nurse include?
- A. Store the medication in a cool, dry place.
- B. Take the medication as directed by the healthcare provider.
- C. Take the medication 30 minutes before meals.
- D. Take the medication at the first sign of chest pain.
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.
4. A client with chronic obstructive pulmonary disease (COPD) is prescribed theophylline. The nurse should monitor the client for which sign of theophylline toxicity?
- A. Drowsiness
- B. Bradycardia
- C. Nausea
- D. Constipation
Correct answer: C
Rationale: Nausea is an early sign of theophylline toxicity. The nurse should closely monitor the client for this symptom as it can progress to more severe toxicity. Nausea can be a warning sign to prevent further complications and adjust the dosage as necessary. Drowsiness (choice A) is a common side effect of theophylline but not a specific sign of toxicity. Bradycardia (choice B) and constipation (choice D) are not typically associated with theophylline toxicity. Therefore, the correct answer is C.
5. The healthcare provider is evaluating the effects of care for a client with deep vein thrombosis (DVT). Which limb observations should the provider note as indicating the least success in meeting the outcome criteria for this problem?
- A. Pedal edema that is 3+
- B. Slight residual calf tenderness
- C. Skin warm, equal temperature in both legs
- D. Calf girth 1/8 inch larger than the unaffected limb
Correct answer: A
Rationale: Significant pedal edema, indicated by 3+, suggests ongoing or worsening venous insufficiency. This can be a sign that the care provided has not been effective in managing the deep vein thrombosis (DVT) and the associated complications. Monitoring and addressing pedal edema is crucial in the evaluation of DVT treatment outcomes and overall patient care. Choices B, C, and D are not indicative of the least success in meeting the outcome criteria for DVT. Slight residual calf tenderness, skin warmth, and a slightly larger calf girth do not necessarily point towards treatment failure or lack of improvement in DVT management.
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