Nokea
Which of the following clients should refrain from therapy with the thiazide diuretic hydrochlorothiazide (HCTZ)?
- A. A client with renal impairment
- B. A client with hypertension
- C. A client with diabetes mellitus, type II
- D. A client with renal calculi (kidney stones)
Correct Answer: C
Rationale: Thiazides can elevate blood glucose by causing hypokalemia, which reduces insulin secretion, making them unsuitable for clients with type II diabetes.
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During a throat assessment, a healthcare provider asks a client to stick out their tongue and notices it protrudes in the midline. Which cranial nerve is being tested?
- A. Cranial nerve X
- B. Cranial nerve V
- C. Cranial nerve IX
- D. Cranial nerve XII
Correct Answer: D
Rationale: The correct answer is cranial nerve XII (hypoglossal nerve). When testing cranial nerve XII, the healthcare provider inspects the symmetry and movement of the tongue. The tongue should protrude in the midline when the client sticks it out. Cranial nerve IX (glossopharyngeal nerve) and X (vagus nerve) are tested by depressing the tongue with a blade to observe pharyngeal movement and gag reflex. Cranial nerve V (trigeminal nerve) is responsible for testing the muscles of mastication, not tongue protrusion.
A healthcare provider is preparing to perform a Rinne test on a client who complains of hearing loss. In which area does the healthcare provider first place an activated tuning fork?
- A. On the client's teeth
- B. On the client's forehead
- C. On the client's mastoid bone
- D. On the midline of the client's skull
Correct Answer: C
Rationale: In the Rinne test, the base of an activated tuning fork is held first against the mastoid bone, behind the ear, and then in front of the ear canal (0.5 to 2 inches). When the client no longer perceives the sound behind the ear, the fork is moved in front of the ear canal until the client indicates that the sound can no longer be heard. The client reports whether the sound from the tuning fork is louder behind the ear (on the mastoid bone) or in front of the ear canal. Placing the tuning fork on the teeth (Choice A), forehead (Choice B), or the midline of the skull (Choice D) is not part of the Rinne test procedure. Therefore, the correct answer is to first place the activated tuning fork on the client's mastoid bone.
The school nurse is conducting health screenings on schoolchildren. During the screening, she identifies a child with the behavioral characteristics of attention deficit disorder. Which of the following behaviors is consistent with this disorder?
- A. slow speech development
- B. overreaction to stimuli from the surroundings
- C. inability to carry on a conversation
- D. concrete thinking
Correct Answer: B
Rationale: The correct answer is 'overreaction to stimuli from the surroundings.' Children with attention deficit disorder often exhibit hypersensitivity to stimuli, leading to overreactions. Slow speech development is not a hallmark of attention deficit disorder; it is more associated with other learning disabilities. While children with this disorder may have difficulty focusing, they can usually carry on a conversation. Concrete thinking is not a common characteristic of attention deficit disorder, as individuals with this disorder may struggle with abstract thinking and impulsivity.
Levothyroxine (Synthroid) is the drug of choice for thyroid replacement therapy in clients with hypothyroidism because:
- A. it is chemically stable, nonallergenic, and can be administered orally once a day.
- B. it is available in a single 25 mg tablet, which makes dosing simple.
- C. it is not a prodrug.
- D. it has a short half-life.
Correct Answer: A
Rationale: Levothyroxine is safe and effective with virtually no side effects when dosed properly. A single, daily dose is possible because of the long half-life (7 days). Levothyroxine tablets are available in a wide range of concentrations to meet individual client requirements. Levothyroxine (T4) is a prodrug of T3.
A nurse is preparing to test the function of cranial nerve XI. Which action does the nurse take to test this nerve?
- A. Asking the client to stick out his or her tongue and watching for tremors
- B. Touching the posterior pharyngeal wall with a tongue blade and noting the gag reflex
- C. Depressing the client's tongue with a tongue blade and noting pharyngeal function as the client says 'ah'
- D. Placing his or her hands on the client's shoulders and asking the client to shrug the shoulders against resistance from the nurse's hands
Correct Answer: D
Rationale: To assess the function of cranial nerve XI (spinal accessory nerve), the nurse examines the sternomastoid and trapezius muscles for equal size and strength. The correct method involves asking the client to rotate the head forcibly against resistance to the side of the chin and to shrug the shoulders against resistance from the nurse's hands. Choice A, asking the client to stick out the tongue and watching for tremors, is used to assess cranial nerve XII (hypoglossal nerve). Choice C, depressing the client's tongue with a tongue blade and noting pharyngeal function as the client says 'ah', is the technique for examining cranial nerves IX (glossopharyngeal nerve) and X (vagus nerve). Choice B, touching the posterior pharyngeal wall with a tongue blade and noting the gag reflex, is used to evaluate cranial nerves IX (glossopharyngeal nerve) and X (vagus nerve), not cranial nerve XI.