Nokea
The nurse positions a client who is being treated for a fracture. Why should care be taken to position the client's joints in an anatomic alignment?
- A. To prevent deep vein thrombosis
- B. To facilitate the lung expansion and prevent the pooling of secretions
- C. To prevent the escalation of the pain and swelling
- D. To prevent damage to the peripheral nerves and the blood vessels
Correct Answer: D
Rationale: Proper alignment prevents nerve and vascular damage.
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Which of the following neurotransmitters is progressively lost in Parkinson's disease?
- A. somatostatin
- B. dopamine
- C. acetylcholine
- D. endorphin
Correct Answer: B
Rationale: Parkinson's disease is characterized by the progressive loss of dopamine-producing neurons in the substantia nigra, a region of the brain. This loss leads to the motor symptoms of the disease, such as tremors, rigidity, and bradykinesia.
A nurse counseling a patient diagnosed with dissociative identity disorder (DID) should understand that the assessment of highest priority is:
- A. risk for self-harm
- B. cognitive functioning
- C. identification of drug abuse
- D. readiness to reestablish identity or memory
Correct Answer: A
Rationale: The correct answer is A: risk for self-harm. In patients with DID, the primary concern is ensuring their safety due to the high risk of self-harm or suicide. Assessing this risk is crucial for immediate intervention to prevent harm. Choice B, cognitive functioning, may be important but is secondary to ensuring patient safety. Choice C, identification of drug abuse, is relevant but not as urgent as addressing the risk for self-harm. Choice D, readiness to reestablish identity or memory, is important but not as critical as ensuring the patient's safety. Therefore, assessing the risk for self-harm takes precedence in the care of a patient with DID.
With regard to dermatomal nerve supply:
- A. C7 supplies the index finger
- B. The anterior axial line of the upper limb runs between C6 and C7
- C. T6 is at the level of the nipple
- D. The umbilicus is supplied by either T12 or L1
Correct Answer: C
Rationale: The T6 dermatome corresponds to the level of the nipple. Dermatomes are specific regions of skin supplied by sensory fibers from a single spinal nerve.
Which of the following is the causative agent of East African trypanosomiasis?
- A. Trypanosoma cruzi
- B. Trypanosoma vivax
- C. Trypanosoma brucei rhodanese
- D. Trypanosoma brucei gambiense
Correct Answer: C
Rationale: The correct answer is C: Trypanosoma brucei rhodanese. East African trypanosomiasis is caused by Trypanosoma brucei, specifically the subspecies Trypanosoma brucei rhodanese. This parasite is transmitted by tsetse flies and infects humans, causing sleeping sickness. Trypanosoma cruzi (Choice A) causes Chagas disease, not East African trypanosomiasis. Trypanosoma vivax (Choice B) causes a different form of animal trypanosomiasis. Trypanosoma brucei gambiense (Choice D) is responsible for West African trypanosomiasis, not the East African form. Therefore, the correct choice is C.
The Bell's phenomenon:
- A. occurs during normal blinking
- B. if absent suggests brain stem disease
- C. is absent in Bell's palsy
- D. is reduced or absent in patients with thyroid orbitopathy
Correct Answer: D
Rationale: The Bell's phenomenon, an upward and outward eye movement during eyelid closure, is reduced or absent in thyroid orbitopathy due to restricted eye movements. It is not typically absent in Bell's palsy or brain stem disease.