The nurse is caring for a patient with wheezes, shortness of breath, urticaria and itching after receiving a new antibiotic The nurse understands that the epinephrine in this situation would be administered intramuscularly (IM), rather than intravenously (IV) because:
IM epinephrine is the fastest route of administration
IV epinephrine is only administered during cardiac arrest
Epinephrine would not be administered in this situation
IM epinephrine is less concentrated than IV.
The Correct Answer is B
A) IM epinephrine is the fastest route of administration:
While epinephrine is often administered intramuscularly in cases of anaphylaxis and allergic reactions, the speed of action is not the primary reason for choosing this route over intravenous (IV) administration in this situation. Intramuscular administration of epinephrine allows for a rapid onset of action, but it is not necessarily the fastest route compared to IV. IV administration would act more quickly in an emergency setting where immediate blood circulation is critical, but IM is preferred in allergic reactions to prevent excessive systemic effects and to avoid rapid peaks in plasma levels.
B) IV epinephrine is only administered during cardiac arrest:
Epinephrine is generally administered intravenously during life-threatening situations such as cardiac arrest or severe shock, where immediate circulatory effects are needed. In cases of anaphylaxis, however, intramuscular (IM) administration of epinephrine is the preferred route because it allows for a more controlled absorption rate and reduces the risk of excessive blood pressure and other adverse cardiovascular effects. This is the correct rationale for why epinephrine is administered IM in the context of an allergic reaction.
C) Epinephrine would not be administered in this situation:
Epinephrine is the first-line treatment for severe allergic reactions and anaphylaxis, especially in cases where symptoms like wheezing, shortness of breath, urticaria, and itching are present. Therefore, withholding epinephrine is not an appropriate response in this situation. Immediate intervention with epinephrine is critical to reverse the symptoms of anaphylaxis and prevent further respiratory distress or cardiovascular collapse.
D) IM epinephrine is less concentrated than IV:
The concentration of epinephrine used for IM and IV administration is the same. The primary reason for choosing the IM route over the IV route is the slower absorption and the fact that it minimizes the risk of a rapid increase in systemic blood pressure and other adverse reactions. While IM epinephrine may be absorbed more slowly than IV, its concentration is appropriate for treating anaphylaxis effectively. The choice of IM is based on safety and controlled response, not on the concentration of the drug.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A) Urine output of 0.5-1 mL/kg/hr:
This is a positive outcome during fluid resuscitation for burn patients. Adequate urine output is a key indicator of proper renal perfusion and fluid balance. A urine output of 0.5-1 mL/kg/hr is considered optimal for burn patients during the first 24-48 hours of resuscitation. It suggests that the kidneys are receiving sufficient blood flow and that the patient is responding appropriately to the fluids being administered.
B) Serum sodium level 149 mEq/L (normal 135-145):
A serum sodium level of 149 mEq/L is high and indicates hypernatremia, which is a common complication of excessive fluid resuscitation, particularly with the use of crystalloids. Hypernatremia can lead to cerebral edema, altered mental status, and other severe complications. Therefore, this finding would suggest improper fluid management and would not be considered a positive outcome.
C) Blood pressure 82/54:
A blood pressure of 82/54 is hypotensive, which is concerning in a burn patient. Hypotension indicates inadequate tissue perfusion, potentially leading to shock and organ failure. While low blood pressure may occur in the initial stages of resuscitation due to the rapid shifts in fluid, a sustained low blood pressure is not a positive outcome.
D) Heart rate 124 beats per minute:
A heart rate of 124 beats per minute is tachycardic and suggests that the patient is compensating for hypovolemia or inadequate circulatory volume, possibly due to insufficient fluid resuscitation. Although an elevated heart rate may occur as a compensatory mechanism in the initial stages of burn resuscitation, sustained tachycardia indicates ongoing volume depletion or inadequate perfusion and is not an ideal outcome.
Correct Answer is D
Explanation
A) Measure heart chamber pressures to assess for heart failure:
Measuring heart chamber pressures is an important diagnostic tool in assessing heart failure, but it is not the primary goal in the case of a STEMI (ST-Elevation Myocardial Infarction). In STEMI, the primary goal is to identify and treat the blockage in the coronary arteries that is causing the heart attack.
B) Determine cardiac output during the procedure:
Cardiac output is a useful measurement for assessing heart function, but it is not the main focus during the treatment of STEMI. While monitoring cardiac output may be part of the overall care, the urgent priority in STEMI management is to restore blood flow to the affected myocardial tissue as quickly as possible to minimize damage, not to measure cardiac output.
C) Evaluate the extent of the occlusion of the coronary arteries involved:
While evaluating the extent of coronary artery occlusion is part of the process during a cardiac catheterization, the immediate priority for a patient with STEMI is to treat the blockage, not just evaluate it. While the angiogram will reveal the blockage, the treatment goal is to restore perfusion to the affected area of the heart through procedures such as balloon angioplasty or stent placement.
D) Prevent extensive myocardial damage:
This is the correct answer. The main goal of treatment for STEMI is to prevent extensive myocardial damage. In a STEMI, the coronary artery is blocked, depriving the heart muscle of oxygen, which can cause significant damage or death of the myocardial tissue. The most effective way to limit the extent of damage is to restore blood flow as quickly as possible, often through emergent procedures like percutaneous coronary intervention (PCI) or fibrinolytic therapy.
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.
