Nokea
When an edrophonium (Tensilon) test is carried out, which of the following drugs must be available as an antidote?
- A. Atropine sulfate
- B. Diazepam (Valium)
- C. Ephedrine
- D. Corticosteroids
Correct Answer: A
Rationale: Atropine sulfate is used as an antidote for cholinergic crisis.
You may also like to solve these questions
The nurse is providing care for an 87-year-old woman who is recovering from a cerebral vascular accident. Which precaution should the nurse take after noting the patient has a positive Romberg test?
- A. Institute fall-risk precautions.
- B. Provide small, frequent meals.
- C. Request a footboard and splints.
- D. Darken the room and reduce stimuli.
Correct Answer: A
Rationale: A positive Romberg test indicates impaired balance and proprioception, increasing the risk of falls. Fall-risk precautions, such as using a gait belt and ensuring a safe environment, are essential. Small meals, footboards, and reducing stimuli are not directly related to balance issues.
Application of RICE (rest, ice, compression, and elevation) is indicated for initial management of which type of injury?
- A. Muscle spasms
- B. Sprains and strains
- C. Repetitive strain injury
- D. Dislocations and subluxations
Correct Answer: B
Rationale: RICE is effective for managing acute soft tissue injuries like sprains and strains.
A 25 year-old housewife presents to the urgent care clinic for evaluation of paralysis in her face on the right side. She has a history of an upper respiratory infection 2 weeks before the onset of symptoms. She states that her face on the right is drooping and she is not able to close the right eye. On physical examination, you note that her forehead is smooth on the right, the left palpebral fissure appears wider than the right, and her nasolabial fold on the right is flattened and she is drooling. Based on this information, what is the most likely diagnosis?
- A. Cortical stroke
- B. Bell's palsy
- C. Horner's syndrome
- D. Stress reaction
Correct Answer: B
Rationale: Bell's palsy is a condition characterized by sudden, unilateral facial paralysis due to inflammation or compression of the facial nerve (CN VII). It often follows a viral infection and presents with drooping of the face, inability to close the eye, and flattening of the nasolabial fold. A cortical stroke typically spares the forehead, and Horner's syndrome involves ptosis and miosis.
What kind of loss does the nurse recognize this to be?
- A. Delirium
- B. Memory loss in AD
- C. Normal forgetfulness
- D. Memory loss in mild cognitive impairment
Correct Answer: C
Rationale: Forgetting names and birthdays is typical of normal forgetfulness
A dendrite conducts nerve impulses ________ the cell body.
- A. away from
- B. toward
- C. both toward and away from
- D. around, bypassing
Correct Answer: B
Rationale: Dendrites are specialized structures that receive nerve impulses from other neurons and conduct them toward the cell body. They are branched extensions that increase the surface area for receiving signals. The electrical signals generated by neurotransmitters binding to receptors on dendrites travel toward the cell body, where they are integrated to determine whether the neuron will fire an action potential. This directional flow is essential for neural communication.