A nurse teaches a patient about atelectasis. Which statement by the patient indicates an understanding of atelectasis?

"Atelectasis affects only those with chronic conditions such as emphysema."

"Hyperventilation will open up my alveoli, preventing atelectasis."

"It is important to do breathing exercises every hour to prevent atelectasis."

"If I develop atelectasis, I will need a chest tube to drain excess fluid."

Answer and Explanation

The Correct Answer is C

A. Atelectasis can occur in anyone, not just those with chronic conditions; this statement is incorrect.
B. While hyperventilation may temporarily open alveoli, it is not a preventative measure for atelectasis.
C. Breathing exercises, such as incentive spirometry or deep breathing, are effective in preventing atelectasis by promoting lung expansion and alveolar ventilation.
D. A chest tube is typically used to remove air or fluid from the pleural space, not for the treatment of atelectasis, which is often managed with respiratory therapies.

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Correct Answer is D

Explanation

A. An increase in heart rate does not directly affect hemoglobin levels; this option is incorrect.
B. A higher heart rate decreases diastolic filling time, as there is less time for the heart to fill between beats, which can lead to reduced stroke volume.
C. An increased heart rate does not inherently increase stroke volume; in fact, at very high rates, stroke volume can decrease due to reduced filling time.
D. The significant increase in heart rate to 164 beats/min can lead to decreased cardiac output due to compromised diastolic filling and reduced stroke volume.

A. SA node B. AV node C. Bundle of His D. Purkinje fibers

Correct Answer is A

Explanation

A. The P wave represents atrial depolarization, which is initiated by the SA node, the heart's natural pacemaker.
B. The AV node is responsible for conducting impulses from the atria to the ventricles but does not initiate the P wave.
C. The Bundle of His transmits the electrical impulses to the ventricles but is not directly associated with the P wave.
D. Purkinje fibers are involved in ventricular depolarization, which corresponds to the QRS complex, not the P wave.

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A nurse teaches a patient about atelectasis. Which statement by the patient indicates an understanding of atelectasis?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A patient's heart rate increased from 94 to 164 beats/min. What will the nurse expect as a result?

Correct Answer is D

Explanation

A nurse is reviewing the electrocardiogram (ECG) results. Which portion of the conduction system does the nurse consider when evaluating the P wave?

Correct Answer is A

Explanation

The nurse completes a thorough assessment of a patient and analyzes the data to identify nursing diagnoses. Which step will the nurse take next in the nursing process?

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