Register
Question 1
Which option is NOT a mechanism by which bronchodilators improve COPD symptoms?
Correct Answer:
They narrow the airways
Explanation:
Bronchodilators help COPD symptoms by relaxing airway smooth muscle, which widens the airways, lowers airway resistance, and improves airflow. This increase in caliber translates to a higher FEV1 and better ventilation, meaning gas exchange improves and dyspnea can lessen. They do not narrow the airways; in fact, narrowing would worsen airflow. So the statement that bronchodilators narrow the airways is not a mechanism by which they improve symptoms.
Question 2
In a respiratory patient, what might an increase in restlessness signal?
Correct Answer:
Increasing hypoxemia
Explanation:
Restlessness signals the brain isn’t getting enough oxygen. In a patient with a respiratory problem, a rise in restlessness most often points to increasing hypoxemia, meaning oxygen delivery to tissues is falling. Because the brain is highly sensitive to low oxygen levels, agitation, anxiety, and irritability can appear early as oxygenation worsens. This is why a sudden increase in restlessness should prompt an immediate check of oxygen saturation and, if needed, ABG results and a reassessment of oxygen therapy or airway status. By contrast, worsening hypercapnia tends to produce headache, confusion, or somnolence rather than acute restlessness, and improving ventilation or oxygenation would typically reduce restlessness rather than increase it.
Question 3
Which statement about the timeframe for TB exposure-related symptoms is accurate?
Correct Answer:
Symptoms always appear within 24 hours.
Explanation:
TB infection doesn’t cause immediate illness. After exposure and infection, there’s a lag before symptoms can appear, and many people harbor the bacteria without symptoms (latent TB). If active TB develops, the onset of symptoms typically takes weeks to months, not hours or days. Testing for infection (like a tuberculin skin test or IGRA) can become positive within about 2–8 weeks after exposure, even if no symptoms are present. So saying that symptoms always show up within 24 hours isn’t accurate—the disease has a much longer and variable timeline.
Question 4
Which ABG result is most consistent with metabolic acidosis?
Correct Answer:
Low pH and low HCO3
Explanation:
Metabolic acidosis is defined by a decrease in bicarbonate (HCO3-) with a resulting drop in blood pH, reflecting an accumulation of acid or loss of base. The body tries to compensate by increasing ventilation to blow off CO2, so the pCO2 tends to fall as adjustment occurs. The ABG result that shows both a lower pH and a lower HCO3- fits this pattern: acidemia with reduced bicarbonate, indicating metabolic acidosis. The other patterns do not reflect this primary metabolic disturbance: a high pH indicates alkalemia; a normal pH with normal HCO3- shows no acid-base disorder; a low pH with high HCO3- would imply a different or mixed disorder rather than metabolic acidosis.
Question 5
Which factor increases the diagnostic yield of sputum cultures in suspected pneumonia?
Correct Answer:
Collecting a deep cough sample early in the morning before antibiotics
Explanation:
The main idea is that the chance of identifying the pneumonia-causing organism from a sputum culture is highest when you obtain a true lower-respiratory sample before any antibiotics are started. A deep cough sample collected first thing in the morning tends to contain more sputum from the lower airways and less contamination from oral bacteria, so the lab is more likely to recover the pathogen. If antibiotics have already been started, their effect can reduce or eliminate viable bacteria, lowering the likelihood of a positive culture. Similarly, samples that are just saliva or collected in a nonsterile container are more contaminated with oral or environmental organisms, which makes it harder to pinpoint the actual pathogen.
Question 1
Exam overview

About this Exam

Prepare with the Comprehensive Respiratory and Infectious Disease Nursing Practice Test practice quiz. This question bank includes 10 questions covering copd, symptoms, result, pneumonia, and comprehensive. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

More details

Additional Information

Comprehensive Respiratory and Infectious Disease Nursing Practice Test

This practice set contains 10 questions from the matching question bank and focuses on copd, symptoms, result, pneumonia, and comprehensive. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

Quiz information

Frequently Asked Questions

The complete question count is available after full access is unlocked.
No fixed duration is currently configured for this quiz.
Question explanations are included where they are available in the quiz content, helping you review the reasoning after answering.
Yes. You can retake the practice test again as you continue studying during your available access period.
After your access is confirmed, you can continue into the complete practice exam from this quiz flow.
Unless explicitly stated otherwise, this page provides independent practice material for study and exam preparation and is not the official examination itself.
Keep studying

Related Questions

Archer Child Health Cardio/Respiratory Practice Exam

5 min

Architectural Design Practice Test: Your Comprehensive Study Guide

0 min

Arizona CNA Certified Nursing Assistant Practice Exam

0 min

Arizona Nursing Care Institution Administrators (NCIA) Practice Exam

0 min

Certified Respiratory Therapist Practice Exam

0 min

Arizona State University (ASU) NUR356 Nursing Concepts: Fundamentals and Adult Health Exam 1 Practice

0 min