Nokea
Which lifestyle modification is recommended for individuals with heart failure?
- A. Sedentary lifestyle
- B. Smoking
- C. Regular physical activity
- D. Excessive alcohol consumption
Correct Answer: C
Rationale: The correct answer is C: Regular physical activity. Physical activity is recommended for individuals with heart failure as it can help improve cardiovascular health, strengthen the heart muscle, and enhance overall well-being. Exercise can also help manage symptoms of heart failure and improve quality of life.
The other choices are incorrect:
A: Sedentary lifestyle can worsen heart failure symptoms and lead to deconditioning.
B: Smoking is harmful for heart health and can exacerbate heart failure.
D: Excessive alcohol consumption can weaken the heart muscle and contribute to heart failure complications.
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In human beings, partial pressure of carbon dioxide in the inspired and expired air is respectively
- A. 0.3 and 40 mm Hg
- B. 0.3 and 32 mm Hg
- C. 40 and 46 mm Hg
- D. 40 and 0.3 mm Hg
Correct Answer: B
Rationale: The correct answer is B (0.3 and 32 mm Hg) because in inspired air, the partial pressure of carbon dioxide is low at around 0.3 mm Hg, whereas in expired air, the partial pressure of carbon dioxide is higher at around 32 mm Hg due to gas exchange in the lungs.
Choice A (0.3 and 40 mm Hg) is incorrect because the partial pressure of carbon dioxide in inspired air is not typically as high as 40 mm Hg.
Choice C (40 and 46 mm Hg) is incorrect because the values are reversed; the partial pressure of carbon dioxide is higher in expired air compared to inspired air.
Choice D (40 and 0.3 mm Hg) is incorrect as the values are reversed, and the partial pressure of carbon dioxide in inspired air is not typically as high as 40 mm Hg.
Which of the following nursing activities is most important when a client comes back from a respiratory test if they have respiratory problems?
- A. Allow the client to rest
- B. Assess the client’s airway
- C. Teach the client important information
- D. Teach the family about respiratory disease
Correct Answer: B
Rationale: The correct answer is B. Assessing the airway is critical immediately after a respiratory test, especially if the client has pre-existing respiratory issues. A (rest) is secondary until stability is confirmed. C and D involve education, which is important but not urgent compared to ensuring airway patency.
A SCUBA diver has been deep underwater and suddenly rises to the surface too fast. Why does the diver get decompression sickness?
- A. Pressure decreases and carbon dioxide rushes into cells
- B. Pressure changes too fast and the carbon dioxide in the blood forms bubbles
- C. Pressure decreases too fast and nitrogen gas in the blood forms bubbles
- D. The gas in the SCUBA tank had too much pressure and rapid ascent forces too much air into the blood
Correct Answer: C
Rationale: The correct answer is C because as the SCUBA diver rises too fast, the pressure decreases rapidly. This causes the nitrogen gas that was dissolved in the blood at high pressure to form bubbles, leading to decompression sickness. Choice A is incorrect because carbon dioxide rushing into cells is not the cause of decompression sickness. Choice B is incorrect because it refers to carbon dioxide forming bubbles in the blood, which is not the mechanism of decompression sickness. Choice D is incorrect because it focuses on excess air from the SCUBA tank entering the blood, which is not the primary reason for decompression sickness.
Two days after undergoing pelvic surgery, a patient develops marked dyspnea and anxiety. What is the first action that the nurse should take?
- A. Raise the head of the bed.
- B. Notify the health care provider.
- C. Take the patient’s pulse and blood pressure.
- D. Determine the patient’s SpO with an oximeter.
Correct Answer: B
Rationale: In this situation, the priority action should be to notify the healthcare provider as the patient's symptoms could indicate a serious complication post-surgery. The healthcare provider needs to be informed promptly to assess and provide appropriate interventions.
pharynx is a muscular tube with a length of
- A. 13cm
- B. 12cm
- C. Sinches
- D. both a and c
Correct Answer: A
Rationale: The correct answer is A: 13cm. The human pharynx is typically around 13cm in length. This length allows for the proper passage of food and liquids from the mouth to the esophagus. Choice B (12cm) is incorrect as it is slightly shorter than the average length of the pharynx. Choice C (5 inches) is also incorrect as it does not correspond to the standard unit of measurement for medical lengths. Choice D (both a and c) is incorrect as 12cm and 5 inches are not equivalent lengths for the pharynx.