When using a metered-dose inhaler (MDI), which step is most important for ensuring effective medication delivery?
- A. Exhale completely before using the inhaler
- B. Inhale quickly while pressing down on the inhaler
- C. Shake the inhaler for 10 seconds before use
- D. Hold breath for 5 seconds after inhaling
Correct Answer: A
Rationale: The correct step to ensure effective medication delivery when using a metered-dose inhaler (MDI) is to exhale completely before using the inhaler. This action helps create more space in the lungs for the medication to reach deeply into the airways. Inhaling quickly while pressing down on the inhaler (Choice B) may cause the medication to impact the throat rather than reaching the lungs. Shaking the inhaler for 10 seconds before use (Choice C) is important to mix the medication but not the most crucial step for effective delivery. While holding the breath for 5 seconds after inhaling (Choice D) can help the medication stay in the lungs momentarily, exhaling completely before inhalation is more critical for optimal drug deposition.
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What is the most important aspect of colostomy care to teach the client?
- A. Change the colostomy bag only when necessary
- B. Eat a low-residue diet
- C. Assess the stoma for color and swelling
- D. Irrigate the colostomy only if advised by a healthcare provider
Correct Answer: C
Rationale: The most important aspect of colostomy care to teach the client is to assess the stoma for color and swelling. This is crucial as it ensures early detection of complications such as ischemia or infection. Changing the colostomy bag only when necessary is more appropriate than doing it daily, as it prevents unnecessary changes that may irritate the skin. While eating a low-residue diet is beneficial, it is not the most crucial aspect to teach. Irrigating the colostomy should only be done if advised by a healthcare provider, as it is not a routine procedure for all clients with a colostomy.
A client with a diagnosis of chronic heart failure is receiving digoxin. What is the most important instruction the nurse should provide?
- A. Take the medication with a high-fiber meal
- B. Monitor pulse rate daily before taking the medication
- C. Avoid dairy products while on this medication
- D. Discontinue the medication if blurred vision is experienced
Correct Answer: B
Rationale: The most important instruction the nurse should provide is to monitor pulse rate daily before taking the medication. Digoxin can lead to bradycardia, so it is crucial to assess the pulse rate before administering the medication. This practice helps ensure that the heart rate is not too low for the safe use of digoxin. Choice A is incorrect as there is no specific requirement to take digoxin with a high-fiber meal. Choice C is also incorrect because there is no need to avoid dairy products while on digoxin. Choice D is incorrect since blurred vision is not a common side effect of digoxin; hence, it is not the most critical instruction to provide.
A client who is 24 weeks pregnant presents with a complaint of feeling dizzy when lying on her back. What is the best response by the nurse?
- A. Advise the client to lie on her side
- B. Encourage the client to drink more fluids
- C. Suggest the client elevate her legs when lying down
- D. Recommend the client take short walks throughout the day
Correct Answer: A
Rationale: The correct answer is to advise the client to lie on her side. Lying on the side can prevent the compression of the vena cava, which can cause dizziness in pregnant women. Encouraging the client to drink more fluids (Choice B) may be beneficial for other conditions but is not the best response for dizziness when lying on her back. Suggesting the client elevate her legs when lying down (Choice C) is not directly related to the issue described by the client. Recommending the client take short walks throughout the day (Choice D) may be helpful for other pregnancy-related symptoms but is not the most appropriate action for dizziness when lying on her back.
A client is diagnosed with Angina Pectoris. Which factor in the client's history is likely related to the anginal pain?
- A. Smokes one pack of cigarettes daily
- B. Drinks two beers daily
- C. Works in a job that requires exposure to the sun
- D. Eats while lying in bed
Correct Answer: A
Rationale: The correct answer is A: 'Smokes one pack of cigarettes daily.' Smoking is a major risk factor for angina and other cardiovascular diseases due to its impact on blood vessels.
Choice B, 'Drinks two beers daily,' is not directly associated with angina pectoris. While excessive alcohol consumption can contribute to heart problems, it is not a primary risk factor for angina.
Choice C, 'Works in a job that requires exposure to the sun,' is not typically related to angina pectoris. Sun exposure is more closely linked to skin-related conditions.
Choice D, 'Eats while lying in bed,' is also not a common risk factor for angina. While certain eating habits can impact heart health, this specific behavior is not directly associated with angina pectoris.
A client with a history of chronic obstructive pulmonary disease (COPD) is prescribed oxygen therapy at 2 liters per minute via nasal cannula. What is the most important instruction the nurse should provide?
- A. Increase the oxygen flow rate if shortness of breath occurs
- B. Use oxygen only when experiencing shortness of breath
- C. Do not adjust the oxygen flow rate without consulting a healthcare provider
- D. Use a humidifier with the oxygen to prevent dry mucous membranes
Correct Answer: C
Rationale: The most important instruction the nurse should provide to a client with COPD prescribed oxygen therapy is not to adjust the oxygen flow rate without consulting a healthcare provider. This is crucial because too much oxygen can suppress the client's respiratory drive, leading to further complications. Choice A is incorrect because increasing the oxygen flow rate without medical advice can be harmful. Choice B is incorrect as oxygen therapy should be used as prescribed, not just when symptoms occur. Choice D is incorrect as the priority is to ensure the correct oxygen flow rate rather than using a humidifier.