Your patient need morphine 7.5 mg subcutaneous STAT for myocardial infarction. On hand is morphine 15 mg per ml. How many ml will you administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use trailing zero. Type the number ONLY, no label)
The Correct Answer is ["0.5"]
Dose ordered / Dose available ×volume
7.5 / 15 ×1=0.5ml
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. A marker of cardiac muscle damage: Troponin is a protein found specifically in cardiac myocytes that is released into the bloodstream when the heart muscle is injured. Elevated levels are the most specific and sensitive laboratory indicator for diagnosing an acute myocardial infarction. It allows healthcare providers to differentiate between unstable angina and true myocardial necrosis.
B. A level of an electrolyte that when abnormal may cause chest pain: Electrolytes such as potassium or magnesium can cause arrhythmias when abnormal, but they are not troponins. Troponin is a structural protein, not a charged ion involved in cellular electrical potential. Monitoring electrolytes is important in cardiac care, but it is distinct from the necrotic marker testing.
C. A marker of the amount of stretch the ventricle has done: The marker for ventricular stretch and fluid volume overload is Brain Natriuretic Peptide (BNP), not troponin. BNP is used to diagnose and monitor the severity of heart failure. Troponin specifically indicates cell death and injury rather than the degree of volume expansion or pressure within the heart.
D. A level of liver enzyme that can be elevated with right sided heart failure: Liver enzymes like ALT and AST may rise during systemic venous congestion, but they are not cardiac-specific. Troponin has no diagnostic value for liver function or hepatic congestion. It is used exclusively to evaluate the integrity of the myocardial tissue during suspected ischemic events.
Correct Answer is A
Explanation
A. Obtain manual blood pressure: Assessing the hemodynamic status is the priority when a client reports a racing heartbeat and shortness of breath. An irregular rhythm following conversion of atrial fibrillation requires immediate validation of perfusion and blood pressure stability. Manual measurement provides the most accurate clinical data for determining the severity of the cardiovascular change.
B. Measure airflow via incentive spirometry: Incentive spirometry is used to prevent atelectasis and is not a diagnostic tool for acute shortness of breath or cardiac arrhythmias. It does not provide information regarding the underlying cause of the "racing heartbeat" or the irregular rhythm. Priority must be placed on cardiovascular assessment rather than routine respiratory exercises.
C. Insert indwelling urinary catheter: There is no immediate clinical indication for an invasive urinary catheter based on the client's current symptoms of palpitations and dyspnea. While monitoring output is important in heart failure, it is secondary to stabilizing the client's heart rate and rhythm. Catheterization poses an unnecessary infection risk in this acute assessment phase.
D. Assist the patient to get dressed to work with physical therapy: Engaging in physical exertion while experiencing tachycardia and shortness of breath is dangerous and contraindicated. The client's reports of a "racing heartbeat" and irregular rhythm indicate a potential relapse into atrial fibrillation with rapid response. Physical activity should be deferred until the client is hemodynamically stable.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.
