The six (6) eye muscles that control eye movement are innervated by cranial nerves:

I, II, V.

III, IV, VI.

III, V, XI.

II, V, VI. .

Answer and Explanation

The Correct Answer is B

Choice A rationale

Cranial nerve I (olfactory) is responsible for smell, and cranial nerve II (optic) is responsible for vision. Cranial nerve V (trigeminal) is involved in facial sensation and mastication. These nerves are not primarily involved in controlling the extrinsic eye muscles responsible for eye movement.

Choice B rationale

Cranial nerve III (oculomotor) innervates the superior, inferior, and medial recti, and the inferior oblique muscles, and controls eyelid elevation. Cranial nerve IV (trochlear) innervates the superior oblique muscle. Cranial nerve VI (abducens) innervates the lateral rectus muscle. Together, these three cranial nerves precisely coordinate all six extraocular muscles for conjugate gaze.

Choice C rationale

While cranial nerve III (oculomotor) is correctly identified, cranial nerve V (trigeminal) and cranial nerve XI (accessory) are not primarily involved in eye movement. Cranial nerve V is involved in facial sensation and mastication, and cranial nerve XI innervates the sternocleidomastoid and trapezius muscles for head and shoulder movement.

Choice D rationale

Cranial nerve II (optic) is responsible for vision, transmitting visual information from the retina to the brain. Cranial nerve V (trigeminal) is involved in facial sensation and chewing. Cranial nerve VI (abducens) is correctly identified as innervating the lateral rectus, but the other two nerves listed do not control the majority of eye movements.

Nursing Test Bank

Quiz #1: RN Exams Pharmacology Exams Quiz #2: RN Exams Medical-Surgical Exams Quiz #3: RN Exams Fundamentals Exams Quiz #4: RN Exams Maternal-Newborn Exams Quiz #5: RN Exams Anatomy and Physiology Exams Quiz #6: RN Exams Obstetrics and Pediatrics Exams Quiz #7: RN Exams Fluid and Electrolytes Exams Quiz #8: RN Exams Community Health Exams Quiz #9: RN Exams Promoting Health across the lifespan Exams Quiz #10: RN Exams Multidimensional care Exams

Get 100+ Naxlex Exit Exams for $79 Try Naxlex NCLEX-RN (14 Day Free-Trial)

Naxlex Comprehensive Predictor Exams

Quiz #1: Naxlex RN Comprehensive online practice 2019 B with NGN Quiz #2: Naxlex RN Comprehensive Predictor 2023 Quiz #3: Naxlex RN Comprehensive Predictor 2023 Exit Exam A Quiz #4: Naxlex HESI Exit LPN Exam Quiz #5: Naxlex PN Comprehensive Predictor PN 2020 Quiz #6: Naxlex VATI PN Comprehensive Predictor 2020 Quiz #8: Naxlex PN Comprehensive Predictor 2023 - Exam 1 Quiz #10: Naxlex HESI PN Exit exam Quiz #11: Naxlex HESI PN EXIT Exam 2

Free Nursing Study Resources

Correct Answer is D

Explanation

Choice A rationale

Allergic reactions involve the body's immune system producing antibodies, not antigens, in response to a specific drug perceived as a foreign substance. Antigens are typically the foreign substances that trigger the immune response. This sensitization leads to the release of inflammatory mediators upon subsequent exposure.

Choice B rationale

Allergic reactions can occur at any time, including on initial exposure or after repeated exposures to a drug, not solely after discontinuation. The immune system's memory allows for a rapid response upon re-exposure, even if discontinued for a period.

Choice C rationale

Allergic drug reactions are inherently unpredictable due to individual variability in immune responses and sensitization. While certain drug classes are more commonly associated with allergies, a specific individual's reaction cannot be foreseen.

Choice D rationale

Allergic drug reactions manifest through a wide spectrum of signs and symptoms, varying from mild dermatological reactions like urticaria and rash to severe, life-threatening anaphylaxis involving multiple organ systems, including respiratory and cardiovascular compromise.

A. Have the patient lie flat before administering the medications. B. Administer the medications if the residual is 200 ml or more. C. Mix all medications together before putting them through the tube. D. Elevate the head of the patient's bed at least 30 degrees before administering the medications.

Correct Answer is D

Explanation

Choice A rationale

Having the patient lie flat before administering medications through a tube increases the risk of aspiration, as gastric contents can reflux into the esophagus and potentially enter the airway. Proper patient positioning is crucial to promote safe medication delivery and prevent pulmonary complications.

Choice B rationale

Administering medications when gastric residual volume is 200 mL or more is generally not recommended. A high residual volume indicates delayed gastric emptying, increasing the risk of aspiration and potentially affecting medication absorption. Typically, residuals of 200-250 mL or more warrant holding the feeding and reassessing.

Choice C rationale

Mixing all medications together before administration is often inappropriate and can lead to several problems. Drug incompatibilities can occur, altering medication effectiveness, causing precipitation, or leading to tube occlusion. Each medication should generally be administered separately, flushed with water between doses.

Choice D rationale

Elevating the head of the patient's bed to at least 30 degrees before administering medications through a tube significantly reduces the risk of aspiration. This semi-Fowler's position utilizes gravity to keep gastric contents in the stomach, promoting safe passage of medications and minimizing reflux into the esophagus and lungs.

View Question and Answer

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

The six (6) eye muscles that control eye movement are innervated by cranial nerves:

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

When monitoring for an allergic reaction, the nurse must be aware that allergic drug reactions.

Correct Answer is D

Explanation

The nurse is preparing to administer medications through a tube. Which of the following should she remember before administering the medications?

Correct Answer is D

Explanation

A patient arrived in the emergency room with a fever of 38.5 °C. Change the temperature to Fahrenheit.

The most critical of the following areas to assess prior to medication administration is the client's:

Complete the following using the list of options. Mr. Brown is a 75-year-old client in for a routine check-up. He has several prescribed medications. The nurse knows that taking numerous drugs is known as:

The nurse must monitor the trough level of medication. When would the nurse order the trough level?

The nurse is assessing orientation in a 79-year-old patient. Which of these responses would lead the nurse to conclude that this patient is oriented?

The nurse should give a client half a glass of water after taking a buccal medication.

The nurse is observing the auscultation technique of another nurse. The correct method to use when progressing from one auscultatory site on the thorax to another is:

A medication order requiring a nurse's judgment to determine that the client's condition necessitates the drug's administration is: