The nurse is caring for a client with a suspected pulmonary embolism. Which diagnostic test should the nurse anticipate?
Chest x-ray
Electrocardiogram
D-dimer blood test
Arterial blood gas
The Correct Answer is C
Choice A reason: Chest x-ray may show nonspecific findings in pulmonary embolism but is not diagnostic. D-dimer, a fibrin degradation product, is highly sensitive for detecting thrombosis, guiding further imaging like CT pulmonary angiography, making it the priority test in suspected cases.
Choice B reason: Electrocardiogram may show tachycardia or right heart strain in pulmonary embolism but is nonspecific. D-dimer is a sensitive screening test, indicating clot presence, which prompts definitive imaging, making it the preferred initial diagnostic step in suspected pulmonary embolism.
Choice C reason: D-dimer blood test is the most sensitive screening tool for pulmonary embolism, detecting fibrin degradation from clots. Elevated levels prompt CT pulmonary angiography for confirmation, guiding urgent treatment to prevent further embolization, making it the critical test to anticipate.
Choice D reason: Arterial blood gas may reveal hypoxemia in pulmonary embolism but is nonspecific, as other conditions cause similar findings. D-dimer is more diagnostic, identifying clot presence, guiding imaging, and ensuring timely intervention, making it the priority test in suspected cases.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: Administering an antacid relieves epigastric pain but is premature without assessing pain characteristics. Pain in peptic ulcer disease may indicate complications like perforation, requiring urgent evaluation. Assessment guides whether antacids or other interventions are appropriate, prioritizing patient safety.
Choice B reason: Assessing pain characteristics (e.g., location, intensity, radiation) is the first step, as epigastric pain in peptic ulcer disease may signal complications like bleeding or perforation. This data guides interventions, ensuring timely management of potentially life-threatening conditions, making it the priority action.
Choice C reason: Checking NSAID use identifies ulcer triggers but is secondary to pain assessment. Pain characteristics determine urgency, as severe or radiating pain may indicate perforation, requiring immediate action. Assessment provides critical data before investigating contributing factors like medication history.
Choice D reason: Obtaining a stool sample for occult blood detects gastrointestinal bleeding but is not the first step. Assessing pain characteristics identifies urgent complications like perforation, guiding whether diagnostic tests or interventions are needed, making pain assessment the initial priority.
Correct Answer is C
Explanation
Choice A reason: Using a soft foam collar may reduce skin irritation but risks dislodging the tracheostomy tube if not secured properly. Leaving old ties in place until new ones are secure ensures tube stability, preventing accidental decannulation, which is critical in early tracheostomy care.
Choice B reason: Knots close to the tracheostomy tube increase pressure on the skin, risking irritation or necrosis. This is incorrect, as ties should allow slight movement. Maintaining old ties until new ones are secure prevents tube displacement, prioritizing airway safety during the procedure.
Choice C reason: Leaving old ties in place until new ones are secure prevents tracheostomy tube dislodgement, a life-threatening risk. This ensures continuous airway patency during tie changes, especially in fresh tracheostomies, making it the safest and most critical action to maintain tube stability.
Choice D reason: Placing knots laterally reduces irritation but does not address the risk of tube dislodgement during tie changes. Keeping old ties in place until new ones are secure is the priority, as it ensures the tube remains stable, preventing airway compromise.
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