The advanced practice registered nurse (APRN) recognizes that extraocular movements are assessed by testing which cranial nerves?
II, III, IV
III, IV, VI
V and VII
IX and X
The Correct Answer is B
A. II, III, IV is incorrect because cranial nerve II (optic nerve) is responsible for vision and visual acuity, not eye movement. While cranial nerves III and IV do contribute to eye movements, this option omits cranial nerve VI, which is also essential.
B. III, IV, VI is correct because cranial nerves III (oculomotor), IV (trochlear), and VI (abducens) control the six extraocular muscles that move the eyes in all directions. Assessing extraocular movements involves testing these three nerves by having the client follow a target through the six cardinal positions of gaze. Any limitation, nystagmus, or asymmetry can indicate cranial nerve dysfunction or muscular pathology.
C. V and VII is incorrect because cranial nerve V (trigeminal) controls facial sensation and mastication, and cranial nerve VII (facial) controls facial expression. Neither of these nerves is responsible for moving the eyes.
D. IX and X is incorrect because cranial nerve IX (glossopharyngeal) and cranial nerve X (vagus) are involved in swallowing, gag reflex, and parasympathetic functions, not eye movements.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Pain distant from the site used to check rebound tenderness is incorrect because this describes referred pain or peritoneal irritation, but not the obturator sign specifically. The obturator sign is localized to the hypogastric or pelvic region.
B. Right hypogastric pain with the right hip flexed and the hip internally rotated is correct because the obturator sign is elicited by flexing the patient’s hip and knee at 90° and then internally rotating the hip. Pain in the right hypogastric or pelvic area indicates irritation of the obturator internus muscle, often due to an inflamed appendix in a pelvic position or other pelvic pathology. This is a classic sign in appendicitis when the appendix is located in the pelvis.
C. Pain with extension of the right thigh while the patient is on their left side is incorrect because this describes the psoas sign, which tests for irritation of the iliopsoas muscle and is also used to detect appendicitis, but specifically for a retrocecal appendix.
D. Pain that stops inhalation in the right upper quadrant is incorrect because this describes Murphy’s sign, which is indicative of cholecystitis, not appendiceal or pelvic irritation.
Correct Answer is D
Explanation
A. Rhonchi is incorrect because rhonchi are low-pitched, snoring or gurgling sounds typically heard during expiration and are caused by secretions in larger airways, such as in chronic bronchitis or pneumonia. They do not indicate upper airway obstruction.
B. Crackles is incorrect because crackles (rales) are discontinuous, popping sounds heard on inspiration, usually due to alveolar fluid, pulmonary edema, or atelectasis. Crackles are not high-pitched nor typically audible without a stethoscope.
C. Wheezing is incorrect because wheezing is a high-pitched, musical sound heard primarily during expiration caused by lower airway narrowing, as in asthma or bronchospasm. Wheezing generally reflects bronchial constriction rather than obstruction of the upper airway.
D. Stridor is correct because stridor is a high-pitched, inspiratory sound that occurs due to partial obstruction of the upper airway, such as the larynx or trachea. It is often audible without a stethoscope and is a medical emergency because it can indicate significant airway compromise, especially in post-anesthesia patients who may have laryngospasm, edema, or retained secretions.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.