Exhibits
The nurse is teaching Lily purse-lip breathing. She should instruct her to inhale slowly through her:
nose, then exhale more slowly through pursed lips
mouth, making her exhalation last three times longer than her inhalation
mouth, then exhale quickly through pursed lips
nose, making her inhalation last three times longer than her exhalation
The Correct Answer is A
A. Nose, then exhale more slowly through pursed lips: Pursed-lip breathing involves inhaling slowly through the nose and exhaling gently and slowly through pursed lips. This technique helps keep the airways open longer, promotes better gas exchange, and reduces shortness of breath.
B. Mouth, making her exhalation last three times longer than her inhalation: While prolonging exhalation is a goal of pursed-lip breathing, inhaling through the mouth does not support optimal airway conditioning.
C. Mouth, then exhale quickly through pursed lips: Exhaling quickly defeats the purpose of pursed-lip breathing, which is to slow down exhalation and prevent airway collapse. Inhaling through the mouth also bypasses natural airway filtering and warming.
D. Nose, making her inhalation last three times longer than her exhalation: The goal is to have a longer exhalation phase, not inhalation. Short inhalation and prolonged exhalation help reduce air trapping and improve oxygenation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Vitamin K:Vitamin K is the antidote for warfarin overdose. Warfarin inhibits vitamin K-dependent clotting factors, and administering vitamin K reverses this effect by promoting the synthesis of clotting factors to control bleeding.
B. Magnesium sulfate:Magnesium sulfate is used to treat conditions such as torsades de pointes and eclampsia but has no role in reversing the anticoagulant effects of warfarin. It does not impact coagulation pathways or vitamin K levels.
C. Flumazenil:Flumazenil is an antidote for benzodiazepine overdose. It acts by antagonizing the effects of drugs like diazepam and lorazepam but has no effect on warfarin or anticoagulation reversal.
D. Protamine sulfate:Protamine sulfate is the antidote for heparin and low-molecular-weight heparin overdose, not warfarin. It neutralizes heparin's anticoagulant properties but does not interact with vitamin K or affect warfarin action.
Correct Answer is B
Explanation
A. The client's sputum is white colored:White sputum may be normal for a client with COPD and often indicates chronic inflammation without infection. It does not signal an acute or emergent issue that requires immediate intervention.
B. The client's arterial blood gas CO₂ level is 76 mm Hg:A CO₂ level this high indicates significant hypercapnia, which can lead to respiratory acidosis and altered mental status. This finding reflects serious respiratory compromise and requires prompt intervention to prevent respiratory failure.
C. The client's pulse oximeter is 90%:While 90% is on the lower end of acceptable for clients with end-stage COPD, it is often tolerated due to their adapted baseline. It does not represent an immediate threat unless accompanied by other signs of deterioration.
D. The client has mild SOB when walking to the bathroom:Mild shortness of breath with exertion is expected in clients with advanced COPD. It reflects baseline activity tolerance and does not require urgent action unless symptoms worsen.
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