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 D
Explanation
A. Completing hourly endotracheal suctioning: Hourly endotracheal suctioning is not typically indicated for a client with increased intracranial pressure (ICP). Frequent suctioning can lead to increased intrathoracic pressure and potentially compromise venous return, which may further elevate ICP. Suctioning should be performed as needed to maintain airway patency while minimizing the risk of increasing ICP.
B. Ensuring proper ventriculostomy transducer levels: Ensuring proper ventriculostomy transducer levels is important for accurate measurement of intracranial pressure (ICP) but may not directly alleviate elevated ICP. Monitoring ICP through ventriculostomy allows for timely detection of changes in ICP, which can guide interventions to manage elevated pressure levels. However, it is not a direct intervention to reduce ICP.
C. Monitoring volume status: Monitoring volume status is important in managing a client with increased intracranial pressure (ICP) as both hypovolemia and hypervolemia can impact ICP. However, monitoring volume status alone does not directly address elevated ICP. Interventions to optimize volume status, such as fluid administration or diuresis, may be implemented based on assessment findings, but they should be done cautiously to avoid exacerbating cerebral edema or altering cerebral perfusion.
D. Elevating the head of the bed 15°: Elevating the head of the bed 15° (or higher) is a crucial intervention for managing a client with increased intracranial pressure (ICP). This position helps promote venous drainage from the brain, reducing venous congestion and intracranial pressure. Elevating the head of the bed also helps prevent cerebrospinal fluid (CSF) from pooling in the brain, which can further increase ICP. Placing the client in a semi-upright position is a standard practice in managing ICP and is recommended in various clinical guidelines.
Correct Answer is D
Explanation
A. Apply soft restraints to wrists and chest: Using restraints should only be considered as a last resort and should not be the first intervention for managing delirium. Restraints can exacerbate agitation and increase the risk of complications such as skin breakdown, musculoskeletal injury, and psychological distress. Therefore, applying restraints should not be the first action taken by the nurse.
B. Administer antipsychotic medications as prescribed: While antipsychotic medications may be used to manage symptoms of delirium in some cases, they should not be the first intervention for preventing client injury. Additionally, the use of antipsychotics in the ICU requires careful consideration due to potential adverse effects, such as sedation, hypotension, and prolongation of the QT interval. The decision to administer antipsychotic medications should be based on a comprehensive assessment and in consultation with the healthcare team.
C. Administer sedative medications as prescribed: Administering sedative medications may help calm an agitated client with delirium, but it should not be the first intervention for preventing client injury. Sedatives can further impair cognition and increase the risk of falls or other complications. Like antipsychotic medications, the use of sedatives should be based on a thorough assessment and in collaboration with the healthcare team, rather than being the initial action taken by the nurse.
D. Arrange for one-on-one observation for the client: Delirium in the intensive care unit (ICU) is a serious condition that can lead to confusion, disorientation, and an increased risk of injury to the client. The priority intervention for preventing client injury in this situation is to ensure constant monitoring and supervision. By arranging for one-on-one observation, the nurse can provide continuous monitoring of the client's behavior, assess for changes or signs of agitation, and intervene promptly to prevent falls or other injuries.
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