A nurse is caring for a client with chest pain. Laboratory Results
1300:
Cardiac troponin T less than 0.5 ng/mL (less than 0.1 ng/mL). LDL 110 mg/dL (less than 130 mg/dL).
Total cholesterol 230 mg/dL (less than 200 mg/dL).
Complete the following sentence by using the list of options: After notifying the provider, the nurse should first:
check a STAT cardiac troponin.
request a prescription for a beta-blocker.
administer sublingual nitroglycerin
Notify the senior
The Correct Answer is C
Administer sublingual nitroglycerin.
Nitroglycerin is a vasodilator that can relieve chest pain caused by myocardial ischemia. The nurse should administer it as soon as possible to improve blood flow to the heart and reduce the risk of myocardial infarction. The nurse should also monitor the client’s blood pressure and heart rate after giving nitroglycerin, as it can cause hypotension and reflex tachycardia.
Choice A is wrong because checking a STAT cardiac troponin is not the first priority.
Cardiac troponin is a biomarker that indicates myocardial injury, but it may not rise until several hours after the onset of chest pain.
Therefore, it is not useful for immediate diagnosis or treatment of acute coronary syndrome. Choice B is wrong because requesting a prescription for a beta-blocker is not the first priority.
Beta-blockers are medications that can lower blood pressure and heart rate, and reduce the oxygen demand of the heart.
They can prevent or reduce the recurrence of chest pain and complications of acute coronary syndrome, but they are not indicated for immediate relief of chest pain.
Choice D is wrong because administering oxygen is not the first priority.
Oxygen therapy can increase the oxygen supply to the heart and reduce ischemia, but it is not necessary for all clients with chest pain.
Oxygen therapy should be based on the client’s oxygen saturation level and clinical condition.
If the client’s oxygen saturation is normal or high, oxygen therapy may not be beneficial and may even be harmful.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Cyanosis is a bluish discoloration of the skin and mucous membranes due to inadequate oxygenation of the blood. It is more difficult to detect in people who have dark skin, so the nurse should look for cyanosis in areas where the skin is thinner and the blood supply is richer, such as the palms of the hands, the lips, the gums, and around the eyes.
These areas are less affected by melanin, the pigment that gives skin its color.
Choice A is wrong because an area of trauma may have bruising or inflammation that can mask cyanosis.
Choice B is wrong because the sacrum is not a good site to assess for cyanosis in any skin tone, as it is prone to pressure ulcers and poor circulation.
Choice C is wrong because the shoulders are not a mucous membrane and may have more melanin than other areas of the body.
Correct Answer is C
Explanation
This is because the PR interval is longer than normal, which indicates a delay in the conduction of electrical impulses from the atria to the ventricles through the AV node. A normal PR interval is 0.12 to 0.2 seconds, or 3 to 5 small squares on the EKG strip. In this case, the PR interval is 0.35 seconds, which is more than 5 small squares.
Choice A is wrong because atrial fibrillation is a type of arrhythmia where the atria beat irregularly and rapidly, producing chaotic and variable P waves and an irregular ventricular response.
There is no constant PR interval in atrial fibrillation.
Choice B is wrong because complete heart block is a type of arrhythmia where there is no conduction of electrical impulses from the atria to the ventricles, resulting in independent and dissociated atrial and ventricular rhythms.
There are no consistent P waves or PR intervals in complete heart block.
Choice D is wrong because premature atrial complexes are extra beats that originate from the atria and interrupt the normal sinus rhythm.
They produce abnormal P waves that are different from the sinus P waves, and may have a shorter or longer PR interval depending on the timing of the impulse.
However, they do not cause a constant prolongation of the PR interval.
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