Nokea
Joe asks the nurse why he must be turned every 2 hours. The nurse explains that he is susceptible to developing decubitus ulcers primarily because
- A. nutritional requirements are increased in the paralyzed patient
- B. muscle spasms cause flexion contractures
- C. retention of waste products causes metabolic acidosis
- D. lack of muscle activity results in poor circulation
Correct Answer: D
Rationale: Poor circulation from lack of muscle activity increases ulcer risk.
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Nurse Parker is overseeing the care of a patient with Parkinson's disease who has been consistently taking carbidopa/levodopa (Sinemet) for a year. She is attentively monitoring for any potential adverse reactions associated with this specific medication. Which adverse reaction should Nurse Parker be particularly vigilant about in monitoring this patient?
- A. The occurrence of dyskinesia.
- B. The emergence of respiratory depression.
- C. The onset of glaucoma.
- D. The development of a rash or other signs of an allergic reaction.
Correct Answer: A
Rationale: Dyskinesia, or involuntary movements, is a common adverse reaction to long-term levodopa therapy in PD patients.
Which of the following statements about axon-guidance is TRUE?
- A. Netrins are long-range cues for chemorepulsion
- B. Semaphorins are short-range cues for chemorepulsion
- C. Cadherins are short-range cues for contact attraction
- D. Ephrins are short-range cues for contact attraction
Correct Answer: C
Rationale: Cadherins are cell adhesion molecules that mediate short-range contact attraction, guiding axons to their targets. Netrins, semaphorins, and ephrins also play roles in axon guidance, but they function through different mechanisms, such as long-range chemotaxis or repulsion. This diversity of guidance cues ensures precise navigation of growing axons.
Which of the following activity-related strategies would a nurse teach a client who is going home?
- A. Avoid fatigue and take frequent rest periods if needed
- B. Take deep breaths every 4 hours while awake
- C. Make your daily routine rigid so that you can remember what to do
- D. Avoid exposure to the outdoors
Correct Answer: A
Rationale: Rest periods help prevent exacerbation of symptoms.
Which number represents the medulla oblongata? (Figure 3)
- A. 1
- B. 2
- C. 5
- D. 8
Correct Answer: D
Rationale: The number 8 represents the medulla oblongata because it is the lower part of the brainstem that controls vital autonomic functions such as heart rate, breathing, and blood pressure. The medulla oblongata is essential for maintaining life and ensuring the proper functioning of the cardiovascular and respiratory systems.
An important nursing intervention for the patient with ankylosing spondylitis is to teach the patient to do what?
- A. Wear roomy shoes with good orthotic support.
- B. Sleep on the side with the knees and hips flexed.
- C. Keep the spine slightly flexed while sitting, standing, or walking.
- D. Perform back, neck, and chest stretches and deep-breathing exercises.
Correct Answer: D
Rationale: Stretching exercises maintain flexibility.