Nokea
How often must physical restraints be released?
- A. every 2 hours
- B. between 1 and 3 hours
- C. every 30 minutes
- D. at least every 4 hours
Correct Answer: A
Rationale: Restraints must be released every 2 hours to assess circulation, skin integrity, and client comfort, with assessments every 30 minutes while restrained.
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Which enzyme is elevated in conditions of pancreatic inflammation, such as pancreatitis?
- A. Alkaline phosphatase
- B. Acid phosphatase
- C. Creatine phosphokinase
- D. Amylase
Correct Answer: D
Rationale: Amylase is elevated in conditions of pancreatic inflammation, such as pancreatitis. The other enzymes are associated with other types of tissue damage.
Which of the following conditions has a severe complication of respiratory failure?
- A. Bell's palsy
- B. Guillain-Barré syndrome
- C. Trigeminal neuralgia
- D. Tetanus
Correct Answer: B
Rationale: Guillain-Barré syndrome can lead to respiratory failure due to progressive muscle weakness affecting respiratory muscles, unlike the other conditions.
Which of the following syndromes associated with incomplete lesions of the spinal cord is a result of damage to one-half of the spinal cord?
- A. Brown-Séquard syndrome
- B. posterior cord syndrome
- C. central cord syndrome
- D. cauda equina syndrome
Correct Answer: A
Rationale: Brown-Séquard syndrome is a result of damage to one-half of the spinal cord. The other choices are also incomplete lesions of the spinal cord, but they have different defining characteristics.
Which of the following statements by a client indicates adequate understanding of preparation for electroencephalography?
- A. I cannot eat or drink after midnight.'
- B. I need to wash my hair before the test.'
- C. I need to remove metal jewelry.'
- D. I cannot take aspirin before the test.'
Correct Answer: B
Rationale: The client needs to wash his hair to remove hair spray, cream, or oil that might interfere with attaching the electrodes to the scalp. Food or fluids do not need to be restricted, with the exception of caffeinated fluids. There is no restriction on metal objects. Aspirin is not a medication that needs to be held before the test (just anticonvulsants, tranquilizers, barbiturates, and other sedatives).
Which of the following represents a normal serum potassium level?
- A. 1.5 mEq/L
- B. 3.0 mEq/L
- C. 4.0 mEq/L
- D. 6.0 mEq/L
Correct Answer: C
Rationale: Normal serum potassium levels fall in a range of 3.5-5.5 mEq/L. The other choices listed fall below or above this range.