When examining your patient, who has a thiamine deficiency related to chronic alcoholism, you are most likely to observe evidence of cranial nerve (CN) involvement resulting in the inability of his eyes to move
a. downward (CN IV). c. outward (CN VI).
b. medially (CN III). d. upward (CN III).
C
Vitamin deficiency, especially thiamine (which can occur in chronic alcoholism), can result in the inability of the eyes to move outward. Cranial nerve VI, the abducens nerve, innervates the lateral rectus muscle and allows the eye to move outward. Therefore, this patient may have involvement of CN VI. CN IV, the trochlear nerve, innervates the superior oblique muscle, allowing the eye to move downward when deviated inward. CN III, the oculomotor nerve, innervates the superior, inferior, and medial rectus and the inferior oblique muscles. CN III allows the eye to move medially and upward.
You might also like to view...
A patient is admitted to the emergency room with the diagnosis of acute appendicitis. The nurse notes during the assessment that the patient's ribs and xyphoid process are prominent. The patient states she exercises daily
The patient's mother indicates she is being treated for anorexia nervosa. The nurse should: A) Inform the postoperative nurse of the patient's risk for wound dehiscence. B) Evaluate the patient's ability to manage her pain level. C) Inform the surgical team and determine her electrolyte levels. D) Instruct the patient on the need for proper nutrition to promote healing.
Which of the following would be considered a mechanical defense mechanism?
A) Cast B) Coughing C) Clothing D) Sunscreen
What element in health care is most responsible for the ethical dilemma of whether health care is a privilege or a right?
a. Cost b. Technology c. Consumerism d. Worker shortage
At 1530, the nursing assistive personnel (NAP) reports the following:
Vital Signs Blood pressure 148/82 mm Hg Heart rate 118 beats/min Respiratory rate 24 breaths/min Temperature 101° F (38.3° C) Spo2 92% Based solely on her vital signs, what could be happening with M.N., and why? You go to assess M. N. What do you need to include in your assessment at this time?