ATI LPN
LPN Pharmacology
1. The LPN/LVN is reinforcing instructions to a client on the use of a metered-dose inhaler. The nurse should recognize that the client is using the inhaler correctly if the client takes which action?
- A. Takes a deep breath and then exhales just before administration
- B. Holds the mouthpiece 1 to 2 inches from the mouth
- C. Inhales the medication and then exhales immediately after administration
- D. Performs 3 short inhalations and then exhales deeply after administration
Correct answer: A
Rationale: When using a metered-dose inhaler, the client should take a deep breath and then exhale just before administration. This technique helps ensure that the medication is inhaled effectively. By exhaling before administration, the client can fully inhale the medication into the lungs, maximizing its therapeutic effects. Choice B is incorrect because holding the mouthpiece 1 to 2 inches from the mouth is not a crucial step for using a metered-dose inhaler correctly. Choice C is incorrect because inhaling the medication and then exhaling immediately after administration would not allow the medication to be adequately absorbed into the lungs. Choice D is incorrect because performing 3 short inhalations and then exhaling deeply after administration is not the correct technique for using a metered-dose inhaler.
2. A client is admitted to the hospital with a diagnosis of myocardial infarction (MI). Which diagnostic test is most likely to be ordered to confirm this diagnosis?
- A. Echocardiogram
- B. Electrocardiogram (ECG)
- C. Chest X-ray
- D. Complete blood count (CBC)
Correct answer: B
Rationale: An Electrocardiogram (ECG) is the primary diagnostic tool used to confirm a myocardial infarction. An ECG provides immediate information on cardiac function and can show characteristic changes indicative of a myocardial infarction, such as ST-segment elevation or depression. An echocardiogram (Choice A) is useful for assessing heart structure and function but is not typically used as the primary test for confirming an acute myocardial infarction. Chest X-ray (Choice C) may show certain changes in heart size or pulmonary congestion but is not the primary diagnostic test for MI. A Complete Blood Count (CBC) (Choice D) provides information about the cellular components of blood and is not specific to confirming a myocardial infarction.
3. A client with a history of heart failure is prescribed metoprolol (Lopressor). The nurse should monitor the client for which common side effect of this medication?
- A. Tachycardia
- B. Hypotension
- C. Hypertension
- D. Hyperglycemia
Correct answer: B
Rationale: Metoprolol is a beta-blocker commonly used in heart failure to reduce blood pressure. One of the common side effects of metoprolol is hypotension, which can lead to dizziness, lightheadedness, and even fainting. Therefore, monitoring for hypotension is essential to prevent adverse effects and ensure patient safety. Choices A, C, and D are incorrect. Tachycardia is not a common side effect of metoprolol, as it actually reduces heart rate. Hypertension is also not a common side effect of this medication, as it is intended to lower blood pressure. Hyperglycemia is not a typical side effect of metoprolol.
4. The client is taking interferon alfa-2a (Roferon-A) and ribavirin (Virazole) combination therapy for hepatitis C and reports overwhelming feelings of depression. Which action should the nurse implement first?
- A. Recommend mental health counseling.
- B. Review the medication actions and interactions.
- C. Assess the client's daily activity level.
- D. Provide information about a support group.
Correct answer: B
Rationale: The priority action for the nurse is to review the medication actions and interactions. Interferon alfa-2a and ribavirin combination therapy for hepatitis C can lead to neuropsychiatric side effects, including depression. By assessing the medication actions and interactions, the nurse can identify if the depression is a known side effect of the medications, and further intervention or adjustment of the treatment plan may be required to address the client's emotional well-being. Recommending mental health counseling (choice A) may be necessary but should come after ensuring that the depression is not solely caused by medication side effects. Assessing the client's daily activity level (choice C) and providing information about a support group (choice D) are important interventions but addressing the medication's potential contribution to the depression takes precedence.
5. 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.
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