Respiratory System Test Questions

Respiratory System Test Questions Related

Review Respiratory System Test Questions related questions and content

A nurse educator is reviewing the implications of the oxyhemoglobin dissociation curve with regard to the case of a current patient. The patient currently has normal hemoglobin levels, but significantly decreased SaO2 and PaO2 levels. What is an implication of this physiological state?

  • A. The patient's tissue demands may be met, but she will be unable to respond to physiological stressors.
  • B. The patient's short-term oxygen needs will be met, but she will be unable to expel sufficient CO2.
  • C. The patient will experience tissue hypoxia with no sensation of shortness of breath or labored breathing.
  • D. The patient will experience respiratory alkalosis with no ability to compensate.
Correct Answer: A

Rationale: The correct answer is A because even though the patient has normal hemoglobin levels, the significantly decreased SaO2 and PaO2 levels indicate that the hemoglobin is not effectively carrying oxygen to the tissues. This leads to a situation where the tissue demands for oxygen may be met at baseline, but the patient will be unable to respond to physiological stressors that require increased oxygen delivery.

Choice B is incorrect because it focuses on short-term oxygen needs and CO2 expulsion, which are not directly related to the implications of the oxyhemoglobin dissociation curve in this case.

Choice C is incorrect because decreased SaO2 and PaO2 levels would lead to tissue hypoxia, which would likely result in sensations of shortness of breath or labored breathing as the body tries to compensate for the lack of oxygen.

Choice D is incorrect because decreased PaO2 levels would not lead to respiratory alkalosis. The body would likely try to compensate by increasing respiratory rate to improve oxygenation.

You may also like to solve these questions

The nurse doing rounds at the beginning of a shift notices a sputum specimen in a container sitting on the bedside table in a patient's room. The nurse asks the patient when he produced the sputum specimen and he states that the specimen is about 4 hours old. What action should the nurse take?

  • A. Immediately take the sputum specimen to the laboratory.
  • B. Discard the specimen and assist the patient in obtaining another specimen.
  • C. Refrigerate the sputum specimen and submit it once it is chilled.
  • D. Add a small amount of normal saline to moisten the specimen.
Correct Answer: B

Rationale: The correct answer is B: Discard the specimen and assist the patient in obtaining another specimen. It is important to discard the sputum specimen because it has been sitting for 4 hours, which could lead to contamination and inaccurate test results. The nurse should assist the patient in obtaining a fresh specimen to ensure accurate testing.

Choice A is incorrect because taking the old specimen to the lab could lead to inaccurate results. Choice C is incorrect because refrigerating the old specimen won't prevent contamination. Choice D is incorrect because adding saline to the old specimen can alter its composition and lead to inaccurate test results.

A 68-year-old male is being admitted to the hospital for an exacerbation of his COPD. The nurse is developing his plan of care. The nurse can expect that this client will?

  • A. Be placed on 10 L of oxygen per nasal cannula.
  • B. Be placed in respiratory isolation.
  • C. Require frequent rest periods throughout the day.
  • D. Be placed on fluid restriction.
Correct Answer: C

Rationale: The correct answer is C: Require frequent rest periods throughout the day. This is because patients with COPD often experience shortness of breath and fatigue, necessitating frequent rest periods to conserve energy and manage symptoms. Oxygen therapy is typically started at a lower flow rate (2-4 L/min) to avoid suppressing the patient's respiratory drive, so option A is not appropriate. Respiratory isolation is unnecessary for COPD exacerbation, as it is not a contagious condition, making option B incorrect. Fluid restriction is not typically indicated for COPD exacerbation unless the patient has comorbid conditions like heart failure, so option D is not the priority.

A client is found to be allergic to Chinese food, which causes acute asthma. Which of the following instructions should the nurse give the client?

  • A. "Only eat Chinese food once a month."
  • B. "Use your inhalers before eating Chinese food."
  • C. "Avoid Chinese food because this is a trigger for you."
  • D. "Determine other causes, because Chinese food wouldn't cause such a violent reaction."
Correct Answer: C

Rationale: Rationale: Choice C is correct because avoiding Chinese food, a known trigger for the client's acute asthma, is crucial to prevent future asthma attacks. By eliminating the trigger, the client can reduce the risk of allergic reactions and asthma exacerbations.

Summary:
A: Incorrect. Eating Chinese food once a month still exposes the client to the trigger, increasing the risk of asthma attacks.
B: Incorrect. Using inhalers before eating Chinese food may help manage symptoms temporarily but does not address the root cause of the allergic reaction.
D: Incorrect. Dismissing the client's known trigger without further investigation can lead to serious health consequences.

Apart from its role in acid-base balance

  • A. what other function is associated with carbonic anhydrase in the gastrointestinal tract?
  • B. Protein digestion
  • C. Lipid absorption
  • D. Starch breakdown
Correct Answer: d

Rationale: Rationale:
Carbonic anhydrase in the gastrointestinal tract catalyzes the conversion of carbon dioxide and water to bicarbonate and protons. This reaction helps maintain pH balance in the gut. Starch breakdown is not directly associated with carbonic anhydrase. Protein digestion is primarily carried out by proteases, and lipid absorption involves enzymes like lipase. These functions are not directly related to carbonic anhydrase in the gastrointestinal tract. Thus, the correct answer is D: Starch breakdown.

The nurse reading a tuberculin skin test (TST) on a new employee who lives in the Midwest,
is 20-years-old, and has no known history of contact with any people with tuberculosis (TB).
The nurse should interpret the reading as positive if the area around the injection site has an
induration of how many millimeters?

  • A. 0 mm
  • B. 5 mm
  • C. 10 mm
  • D. 15 mm
Correct Answer: D

Rationale: The correct answer is D (15 mm) because for a low-risk individual like the new employee, a TST is considered positive if the induration is 15 mm or greater. This is based on the guidelines from the Centers for Disease Control and Prevention (CDC) for interpreting TST results in individuals without known risk factors. Choices A, B, and C are incorrect because an induration of 0 mm, 5 mm, or 10 mm, respectively, would not meet the criteria for a positive TST in this low-risk individual. It is important to consider the individual's risk factors and follow established guidelines to accurately interpret TST results.

Copyright © 2025 Nokea. All rights reserved.