In the first 24 hours post hypophysectomy the nurse checks for:

UPUMS Nsg.Officer-2024

Medical & Surgical Nursing

Hard

Appeared in: UPUMS Nsg.Officer-2024

Explanation

A hypophysectomy involves surgery near the cavernous sinus, a critical area at the base of the brain.
The cavernous sinus houses cranial nerves III (Oculomotor), IV (Trochlear), and VI (Abducens), which control all movements of the eye.
Assessing extraocular movements is a priority to detect early signs of nerve compression from postoperative edema or hematoma.
Changes in eye movement can be the first sign of a developing complication that requires urgent neurosurgical intervention.

Option A: This assessment evaluates peripheral circulation and sensation in the lower extremities, which is not directly affected by a hypophysectomy.
Option B: This assessment checks for peripheral nerve function, specifically related to the spinal nerves supplying the feet. It is not a targeted assessment for a cranial surgery.
Option D: This option is incorrect because the assessments listed in options A and B are not primary postoperative checks for a hypophysectomy.

Clinical Relevance

Nursing practice connection: Knowing Postoperative nursing assessment following a hypophysectomy helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
A key nursing responsibility after hypophysectomy is monitoring for neurological changes. A new deficit in extraocular movement is a red flag for a developing hematoma or severe edema and must be reported to the surgeon immediately.
What if? If the patient also complains of a constant salty taste or post-nasal drip, the nurse should suspect a Cerebrospinal Fluid (CSF) leak, another serious complication. The priority would then be to test the drainage for glucose (a positive test indicates CSF) and notify the physician, while also continuing to monitor neurological status.
Other critical postoperative assessments include monitoring for signs of Diabetes Insipidus (DI) such as high urine output and low specific gravity, and checking for CSF leakage from the nose (halo sign on gauze).

How to Approach the Question

First, identify the core of the question: what is the priority nursing assessment after a hypophysectomy?
Recall the anatomy involved. A hypophysectomy is surgery on the pituitary gland. Where is the pituitary gland located?
Visualize the pituitary gland at the base of the brain, near the optic nerves and the cavernous sinus.
Consider what structures are at risk during surgery in this location. The cranial nerves that pass through the cavernous sinus (III, IV, VI) are at high risk of compression or injury.
Connect the at-risk structures to their function. Cranial nerves III, IV, and VI control eye movement.
Evaluate the options based on this anatomical reasoning. Checking extraocular movements directly assesses the function of these at-risk nerves, making it the most relevant and critical assessment among the choices.

Concept Tested & Keywords

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E6 Nursing Brunner Adult Health 3SA Vol 2 Part 2 p. 44-46