Nokea
Client history and assessment reveals all of these findings. Which finding supports the diagnosis of PE?
- A. Client was recently in a motor vehicle accident.
- B. Client participated in an aerobic exercise program for 6 months.
- C. Client gave birth to youngest child 1 year ago.
- D. Client was on bedrest 6 hours after diagnostic procedure.
Correct Answer: A
Rationale: The correct answer is A. Recent trauma or immobility due to a motor vehicle accident increases the risk of PE. Aerobic exercise (B), childbirth over a year ago (C), and brief bedrest (D) are less likely risk factors.
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The surface area of the alveoli is about
- A. 80 m2
- B. 70m2
- C. 60m2
- D. 90m2
Correct Answer: A
Rationale: The correct answer is A: 80 m2. The alveoli are tiny air sacs in the lungs where gas exchange occurs. The surface area of the alveoli is crucial for efficient gas exchange. The average adult human has around 300 million alveoli with a total surface area of about 70-100 m2, making option A the most accurate. Option B, C, and D are incorrect as they do not fall within the typical range of alveolar surface area. It is important to remember the importance of the large surface area of the alveoli in facilitating the exchange of oxygen and carbon dioxide during respiration.
While assessing an acutely ill patient's respiratory rate, the nurse assesses four normal breaths followed by an episode of apnea lasting 20 seconds. How should the nurse document this finding?
- A. Eupnea
- B. Apnea
- C. Biot's respiration
- D. Cheyne-Stokes
Correct Answer: C
Rationale: The correct answer is C: Biot's respiration. Biot's respiration is characterized by regular breathing interrupted by periods of apnea. In this scenario, the nurse observed normal breaths followed by a 20-second episode of apnea, which aligns with Biot's respiration. It is crucial to document this finding accurately to ensure appropriate care.
Incorrect answers:
A: Eupnea refers to normal breathing without any interruptions or irregularities. The presence of apnea in the scenario rules out eupnea.
B: Apnea would be an incomplete assessment as it does not capture the alternating pattern of normal breaths and apnea observed in Biot's respiration.
D: Cheyne-Stokes breathing involves a cyclical pattern of gradually increasing and decreasing breathing rates, which is not evident in the scenario described.
A client is admitted with suspected pneumonia from the emergency department. The client went to the primary health care provider a few days ago" and shows the nurse the results of what the client calls an allergy test" as shown below: The reddened area is firm. What action by the nurse is best?
- A. Call the primary health care provider's office to request records.
- B. Immediately place the client on Airborne Precautions.
- C. Prepare to begin administration of intravenous antibiotics.
Correct Answer: C
Rationale: The correct answer is C: Prepare to begin administration of intravenous antibiotics. This is the best action because the client is suspected of having pneumonia, which is commonly treated with antibiotics. The nurse should prepare to start IV antibiotics to address the infection promptly.
Choice A is incorrect because requesting records from the primary health care provider's office may delay treatment. Choice B is incorrect because airborne precautions are not necessary for suspected pneumonia. Choice D is incomplete and does not provide a clear action plan for addressing the client's condition.
which of the following is a chronic respiratory disorder caused by smoking?
- A. asthma
- B. emphysema
- C. respiratory alkalosis
- D. Acidosis
Correct Answer: B
Rationale: Emphysema is the correct answer because it is a chronic respiratory disorder specifically caused by smoking. Smoking damages the air sacs in the lungs, leading to shortness of breath and difficulty breathing. Asthma is a separate condition involving airway inflammation. Respiratory alkalosis and acidosis refer to imbalances in blood pH levels, not directly caused by smoking.
Under quiet conditions, blood returning to the heart retains about ________ of its oxygen content.
- A. 25 percent
- B. 50 percent
- C. 75 percent
- D. 90 percent
Correct Answer: C
Rationale: The correct answer is C (75 percent) because under quiet conditions, the venous blood returning to the heart still contains a significant amount of oxygen due to the efficient extraction of oxygen by tissues. This oxygen extraction process typically leaves around 25 percent of oxygen in the venous blood, which is then returned to the heart. Choices A (25 percent), B (50 percent), and D (90 percent) are incorrect because they do not accurately reflect the amount of oxygen retained in the blood under quiet conditions. Option A (25 percent) is the amount typically extracted by tissues, so it cannot be the correct answer. Option B (50 percent) is too high, as more oxygen is extracted by tissues. Option D (90 percent) is also too high, as it overestimates the amount of oxygen retained in venous blood.