A client admitted to the Emergency Department with a suspected STEM. The nurse anticipates that this client will be immediately prepared for the cardiac catheterization laboratory as the goal of treatment is to:
Measure heart chamber pressures to assess for heart failure
Determine cardiac output during the procedure.
Evaluate the extent of the occlusion of the coronary arteries involved
Prevent extensive myocardial damage
The Correct Answer is D
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A) Prevent the drainage by applying a tight pressure dressing:
Applying a tight pressure dressing is not the appropriate intervention in this case. The presence of fluid draining from the ear, particularly a yellow stain, could indicate cerebrospinal fluid (CSF) leakage, which is a potential sign of a skull fracture or traumatic brain injury (TBI) involving the base of the skull. Applying a tight pressure dressing could potentially increase pressure or cause further injury.
B) Administer antibiotics due to increased risk of infection:
While there is an increased risk of infection with a CSF leak, antibiotics should not be administered immediately unless there is clear evidence of an infection. The priority action is to identify whether the fluid is CSF, as antibiotics alone will not address the underlying issue of a CSF leak. The nurse should allow the fluid to drain, collect a sample, and notify the healthcare provider for further assessment, which may include imaging or testing for the presence of CSF.
C) Allow fluid to drain from the patient's ear onto gauze and notify the healthcare provider:
The yellow stain around the fluid dripping from the patient's ear suggests the possibility of CSF leakage, a sign of a skull base fracture. CSF leakage may occur after a traumatic brain injury and should be handled carefully. The nurse's priority action is to allow the fluid to drain onto gauze to prevent the buildup of pressure and to prevent further leakage into the ear canal. The nurse should also immediately notify the healthcare provider for further evaluation and management.
D) Hang intravenous (IV) fluids to replace fluids lost and prevent dehydration:
While IV fluids may be necessary in some cases for patients with trauma, the priority in this situation is to identify the source and nature of the drainage. If the fluid is CSF, it may be important to manage the leak appropriately rather than focusing solely on replacing fluids. The nurse should first confirm whether the fluid is CSF and notify the healthcare provider for further assessment and management. Replacing fluids may be necessary, but it is not the immediate priority.
Correct Answer is A
Explanation
A) Respiratory compromise
A spinal cord injury (SCI) at the level of C-3 (cervical spine) results in the loss of function of the diaphragm, which is innervated by the phrenic nerve originating from C-3 to C-5. As a result, the patient is at high risk for respiratory compromise and may require mechanical ventilation. Respiratory failure is a leading cause of death and complications in individuals with high cervical spinal cord injuries, particularly when the injury is at or above C-4.
B) Hypertension
Although spinal cord injuries can cause autonomic dysreflexia (a condition where the body’s autonomic nervous system overreacts to stimuli, leading to dangerously high blood pressure), this condition is more common in individuals with injuries above T6. At C-3, respiratory issues are the primary concern, and hypertension is not the leading cause of complications.
C) Septic shock
Septic shock can occur after any significant injury, especially if the individual develops infections (e.g., from urinary retention, pressure ulcers, or pneumonia). However, septic shock is not the main cause of complications or death related to a C-3 spinal cord injury.
D) Bradycardia
Bradycardia (a slow heart rate) can indeed be a concern in patients with SCI, especially those with injuries at or above the T1 level. However, at the level of C-3, the main cause of complications is respiratory failure, not bradycardia. While bradycardia can occur due to disruption of sympathetic nervous system control, respiratory compromise is the most critical immediate concern.
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