A client is brought to the emergency department for unrelieved chest pain for 45 minutes. ECG performed by EMS suspects a non-ST elevation myocardial infarction (NSTEMI). Which of the following interventions is most important?
Apply oxygen, administer morphine, and place the client on bed rest with cardiac monitoring.
Have the client chew two aspirin 325 mg each, administer oxygen and bring the crash cart to the bedside.
Administer oxygen, give a dose of nitroglycerin sublingual, and follow with a nonsteroidal anti-inflammatory.
Begin a heparin drip, administer oxygen, and call the lab for stat troponin levels.
The Correct Answer is A
A. Apply oxygen, administer morphine, and place the client on bed rest with cardiac monitoring: These interventions prioritize reducing myocardial oxygen demand and alleviating ischemic pain in the acute phase of NSTEMI. Morphine acts as a potent analgesic and vasodilator, while oxygen improves tissue saturation. Bed rest and continuous monitoring ensure hemodynamic stability and rapid detection of dysrhythmias.
B. Have the client chew two aspirin 325 mg each, administer oxygen and bring the crash cart to the bedside: While aspirin is indicated for its antiplatelet effects, a dose of 650 mg exceeds the standard loading dose of 162 to 325 mg. Administering excessive aspirin increases the risk of gastrointestinal hemorrhage without providing additional cardiac benefit. The crash cart is necessary but secondary to immediate pharmacological stabilization.
C. Administer oxygen, give a dose of nitroglycerin sublingual, and follow with a nonsteroidal anti-inflammatory: Nonsteroidal anti-inflammatory drugs, excluding aspirin, are contraindicated in acute myocardial infarction because they increase the risk of myocardial rupture and mortality. Nitroglycerin helps with vasodilation, but the addition of an NSAID is harmful. This combination fails to provide the necessary sedation and potent analgesia required.
D. Begin a heparin drip, administer oxygen, and call the lab for stat troponin levels: Heparin and troponin levels are essential components of NSTEMI management but do not address the client's immediate, unrelieved pain. Anticoagulation prevents further thrombus formation but does not actively reduce the current ischemic workload. Immediate nursing priorities must focus on symptomatic relief and cardiac workload reduction.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Pulmonary embolism: While shortness of breath is a symptom, the presence of jugular vein distention (JVD) and 2+ bilateral lower extremity edema points more toward a volume overload state. Atrial fibrillation often leads to decreased cardiac output and subsequent congestive symptoms. The physical findings specifically support a diagnosis of systemic venous congestion.
B. Gastritis: Nausea can occur with cardiac issues, but the primary symptoms of racing heart, JVD, and peripheral edema are not associated with gastric inflammation. Gastritis does not cause irregular heart rhythms or shortness of breath. The clinical picture is overwhelmingly cardiovascular rather than gastrointestinal in origin.
C. Heart failure: The combination of an irregular rhythm, shortness of breath, JVD, and 2+ bilateral lower extremity edema are classic indicators of heart failure. Atrial fibrillation reduces the "atrial kick," leading to decreased ventricular filling and backup of fluid into the systemic circulation. These findings characterize the patient's current clinical decompensation.
D. Pneumonia: Lungs sounding clear in all fields effectively rules out active pneumonia as the cause of the client's current respiratory distress. Pneumonia typically presents with cough, fever, and adventitious breath sounds such as crackles or wheezing. The client's symptoms are better explained by cardiac-driven fluid volume excess.
Correct Answer is ["0.5"]
Explanation
Dose ordered /Dose available ×volume
7.5 /15 ×1=0.5ml
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