A patient presents to the Emergency Department (ED) reporting right facial weakness. The nurse understands that a patient suffering from Bell's Palsy will exhibit which assessment findings related to the cranial nerve involvement?
painful areas on the affected side following 3 branches of the nerve
decreased visual acuity when tested with Snellen Chart
unilateral upper and lower facial weaknesses including forehead
facial dropping, with arm and leg weakness on the affected side
The Correct Answer is C
A) Painful areas on the affected side following 3 branches of the nerve:
This is not typically a feature of Bell's Palsy. Bell's Palsy is primarily a motor dysfunction of the facial nerve (cranial nerve VII), leading to facial weakness. The pain associated with Bell's Palsy, if present, is usually mild and localized to the jaw, behind the ear, or along the jawline rather than along all three branches of the trigeminal nerve (cranial nerve V), which controls sensation in the face. Therefore, this choice is not consistent with the typical presentation of Bell's Palsy.
B) Decreased visual acuity when tested with Snellen Chart:
Decreased visual acuity is not a primary feature of Bell's Palsy. This condition specifically affects facial nerve function, which controls the muscles of facial expression, including those responsible for closing the eyes tightly. However, Bell's Palsy does not typically result in visual changes such as decreased visual acuity or problems with vision itself. Decreased vision would be more indicative of an issue with the optic nerve (cranial nerve II) or other eye-related conditions.
C) Unilateral upper and lower facial weakness including forehead:
This is the hallmark sign of Bell's Palsy. The facial nerve (cranial nerve VII) controls the muscles of the face, and when it becomes affected by Bell's Palsy, both the upper and lower parts of the face on one side can be weak or paralyzed. Importantly, Bell's Palsy causes inability to wrinkle the forehead, which distinguishes it from stroke, where the forehead is typically spared because the upper part of the facial muscles receives bilateral input from the brain. Thus, both upper and lower facial weakness, including inability to raise the eyebrow (forehead), is characteristic of Bell's Palsy.
D) Facial dropping, with arm and leg weakness on the affected side:
Facial drooping is a common symptom of Bell's Palsy, but arm and leg weakness is not associated with it. Arm and leg weakness on the same side would be more suggestive of a stroke affecting the cerebrovascular system, rather than a peripheral nerve issue like Bell's Palsy. Bell's Palsy is confined to facial nerve dysfunction and does not cause weakness in the limbs.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A) Insert an oral airway and suction as needed:
This is generally not the first intervention for impaired glossopharyngeal (CN IX) and vagus nerve (CN X) function. The glossopharyngeal and vagus nerves play a critical role in swallowing, gag reflex, and the ability to protect the airway. While an airway might be necessary in cases of severe dysfunction, withholding food and fluids is a more immediate and specific concern when these cranial nerves are impaired, as it prevents aspiration risk.
B) Withhold oral fluids and food:
The glossopharyngeal nerve (CN IX) is involved in taste and swallowing, and the vagus nerve (CN X) is crucial for the motor control of the pharynx and larynx, which are involved in swallowing and protecting the airway. Dysfunction of these nerves can lead to difficulty swallowing (dysphagia), increased risk for aspiration, and the inability to protect the airway effectively. Withholding oral fluids and food helps prevent aspiration, a major risk when these nerves are impaired, until further assessment and management can be done.
C) Apply artificial tears to protect the cornea:
While it is important to protect the cornea in patients with cranial nerve dysfunction (specifically the facial nerve, CN VII), this does not directly relate to the glossopharyngeal (CN IX) and vagus (CN X) nerves. The glossopharyngeal and vagus nerves affect swallowing and airway protection, not eye lubrication. Applying artificial tears would not address the risk associated with impaired swallowing or airway protection.
D) Speak clearly while facing the patient:
Although speaking clearly and facing the patient might be helpful for communication, especially if the patient has difficulty with speech due to nerve impairment, it does not address the immediate and more critical concern of impaired swallowing and airway protection associated with dysfunction of the glossopharyngeal and vagus nerves. The primary concern is ensuring the patient is not at risk for aspiration while eating or drinking.
Correct Answer is ["90"]
Explanation
Given:
Ordered dose of Alteplase: 0.9 mg/kg
Client weight: 220 pounds
Step 1: Convert the client's weight from pounds to kilograms:
1 pound (lb) = 0.453592 kilograms (kg)
Client weight in kg = 220 lbs x 0.453592 kg/lb = 99.76824 kg
Step 2: Calculate the total dose of Alteplase:
Total dose (mg) = Ordered dose (mg/kg) xClient weight (kg)
Total dose (mg) = 0.9 mg/kg x 99.76824 kg
Total dose (mg) = 89.801416 mg
Step 3: Round to the nearest whole number:
Total dose (mg) ≈ 90 mg
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