A nurse is performing preoperative assessments on a client who has a suspected detached retina. Which of the following should the nurse expect to find?
Tonometer intraocular pressure reading 8 mm Hg
Smooth retina edges identified on slit-lamp biomicroscope examination
Visual acuity of 20/20 using the Snellen eye chart
Lens and cornea appear intact during ophthalmoscope exam
The Correct Answer is A
Tonometer intraocular pressure reading 8 mm Hg (Option A): A low intraocular pressure reading may indicate a detached retina. In a detached retina, the vitreous humor (gel-like substance in the eye) may leak into the space behind the retina, causing a decrease in intraocular pressure. However, it's important to note that intraocular pressure alone cannot definitively diagnose a detached retina, and further diagnostic tests, such as a dilated eye examination or retinal imaging, would be needed for confirmation.
Smooth retina edges identified on slit-lamp biomicroscope examination (Option B): In the case of a detached retina, the edges of the retina may appear irregular or undulating rather than smooth. This irregularity is often observed during a dilated eye examination rather than with a slit-lamp biomicroscope.
Visual acuity of 20/20 using the Snellen eye chart (Option C): Visual acuity may be affected in a detached retina, depending on the extent and location of the detachment. However, visual acuity alone cannot confirm a detached retina, as other factors such as refractive errors or cataracts can also affect visual acuity.
Lens and cornea appear intact during ophthalmoscope exam (Option D): While a detached retina may be visualized during an ophthalmoscope examination as a gray or whitish area behind the lens, the appearance of the lens and cornea being intact does not definitively diagnose a detached retina. A thorough dilated eye examination by an ophthalmologist is necessary for accurate diagnosis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Administer acetaminophen by mouth for pain control: While pain management is important, it is not the priority intervention in this situation. Administering acetaminophen for pain control can be done after the client's condition has been assessed and any potential serious injuries, such as head trauma, have been addressed.
B. Perform a thorough health history: Obtaining a health history is essential for understanding the client's baseline health status and any pre-existing conditions that may affect their current condition. However, in the acute phase following a traumatic fall, the priority is to assess and manage any potential life-threatening injuries.
C. Prepare for a STAT non-contrast CT scan: This is the correct answer. In cases of traumatic falls, particularly when there is concern for head injury or intracranial bleeding, obtaining a non-contrast CT scan of the head is a priority. This imaging study helps identify any intracranial injuries such as hemorrhage or skull fractures, allowing for prompt intervention if necessary.
D. Insert an indwelling urinary catheter to monitor urine output: Monitoring urine output is important for assessing renal function, but it is not the priority intervention in the immediate aftermath of a traumatic fall. The focus initially should be on assessing and managing potential life-threatening injuries, particularly those related to head trauma.
Correct Answer is B
Explanation
A. Poor functional ability: While poor functional ability may impact the overall prognosis and quality of life for a client with a subarachnoid hemorrhage (SAH), it is not directly associated with a high mortality rate. Functional ability can be improved with rehabilitation and supportive care.
B. Rebleeding of the injury: Rebleeding of the SAH is a significant risk factor associated with a high mortality rate. Rebleeding can lead to increased intracranial pressure, worsening neurological deficits, and even death. Preventing rebleeding is a critical aspect of managing SAH to improve outcomes.
C. Decreased cerebrospinal fluid: Decreased cerebrospinal fluid (CSF) may indicate conditions such as hydrocephalus, which can complicate the management of SAH. However, it is not directly associated with a high mortality rate compared to rebleeding.
D. Use of nimodipine: Nimodipine is a calcium channel blocker commonly used in the management of SAH to prevent cerebral vasospasm, which can lead to ischemia and worsen outcomes. While nimodipine plays a role in improving outcomes by preventing vasospasm, its use is not directly associated with mortality rates.
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