What action would be most helpful to the nurse in determining whether the chest pain of a patient who has just entered the emergency department is cardiac in origin?
Performing a 12-lead ECG
Administering NTG to see if the pain goes away
Gathering a complete medical history
Asking the patient if performing a Valsalva maneuver reduces the pain
The Correct Answer is A
A. Performing a 12-lead ECG: An ECG is the most definitive and immediate tool to determine if chest pain is cardiac in origin, as it can detect ischemic changes, arrhythmias, or other cardiac abnormalities.
B. Administering NTG to see if the pain goes away: While nitroglycerin (NTG) may relieve ischemic chest pain, it is not definitive for diagnosing the pain's origin and should not be the first step without further assessment.
C. Gathering a complete medical history: Although a medical history is important, it will not immediately determine if the pain is cardiac in origin.
D. Asking the patient if performing a Valsalva maneuver reduces the pain: The Valsalva maneuver is not a reliable method to differentiate cardiac from non-cardiac chest pain and could potentially worsen certain conditions.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["15.94"]
Explanation
Convert the ordered dose to mcg/min:
- 10 mcg/kg/min × 85 kg = 850 mcg/min
Convert the available dose to mcg/mL:
- 800 mg = 800,000 mcg in 250 mL
Concentration = 800,000 mcg ÷ 250 mL
= 3200 mcg/mL
Calculate the infusion rate:
Infusion rate (mL/hour) = [Desireddose(mcg/min) ÷Concentration(mcg/mL)] ×60 min/hour
Infusion rate = (850 mcg/min ÷ 3200 mcg/mL) × 60 min/hour
= 15.94 mL/hour
The IV pump should be set to infuse at approximately 15.94 mL/hour to deliver the ordered dose of dopamine at 10 mcg/kg/min for a patient weighing 85 kg. This ensures the appropriate therapeutic effect.
Correct Answer is D
Explanation
A. "Controlling my blood pressure will decrease my risk of having a heart attack to some degree." This statement is accurate. Controlling blood pressure reduces the risk of developing ACS.
B. "Because I'm over 80, even a 20 mm Hg drop in my blood pressure can reduce my risk." Research indicates that even modest reductions in blood pressure can significantly lower the risk of cardiovascular events, especially in older adults.
C. "High blood pressure will increase my body's need for oxygen and increase my heart's workload." High blood pressure increases myocardial oxygen demand and can lead to ischemia, which is a precursor to ACS.
D. "My high blood pressure has no relationship to the severity of heart disease or its outcomes." This statement is false. High blood pressure is a major risk factor for heart disease, including ACS, and it directly affects the severity and outcomes of heart disease.
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