Nokea
Which laboratory test is used to identify injury to the myocardium and can remain elevated for up to 3 weeks?
- A. Total CK
- B. CK-MB
- C. Myoglobin
- D. Troponin T or I
Correct Answer: D
Rationale: Troponin T or I is highly specific for myocardial injury and can remain elevated for up to 2-3 weeks, making it the best marker for detecting cardiac damage.
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A client with a head injury has an intracranial pressure (ICP) monitor in place. Cerebral perfusion pressure calculations are ordered. If the client's ICP is 22 and the mean pressure reading is 70, what is the client's cerebral perfusion pressure?
- A. 92
- B. 72
- C. 58
- D. 48
Correct Answer: D
Rationale: Cerebral perfusion pressure (CPP) = Mean Arterial Pressure (MAP) - ICP. Given MAP = 70 and ICP = 22, CPP = 70 - 22 = 48. Thus, the answer is 48.
All of the following are parts of the middle ear EXCEPT the
- A. pinna.
- B. incus.
- C. stapes.
- D. malleus.
Correct Answer: A
Rationale: The middle ear includes the incus, stapes, and malleus (ossicles). The pinna is part of the outer ear.
The nurse is reviewing a new client's medication orders. Which order would prompt the nurse to notify the health care provider?
- A. allopurinol 300 mg PO daily
- B. potassium chloride 20 mEq PO daily
- C. warfarin (Coumadin) 50 mg PO daily
- D. metoprolol (Lopressor) 50 mg PO daily
Correct Answer: C
Rationale: A 50 mg dose of warfarin is unusually high and likely a dosing error, requiring provider clarification. Other orders are within typical ranges.
If a client has had repair of a right fractured hip and has an overhead trapeze on the bed to assist with movement, which of the following instructions should the client receive about use of the assistive device? Select all that apply.
- A. The client should always grasp the bar with both hands before moving.
- B. The client should grasp the bar with the left hand and place the right hand flat on the bed to assist movement.
- C. The client should flex the left hip and knee and place the foot flat on the bed before moving.
- D. The client should keep the left hip and knee extended when moving.
Correct Answer: A,C
Rationale: Using both hands on the trapeze (A) and flexing the left leg (C) assist safe movement post-right hip repair. Using one hand (B) or keeping the leg extended (D) is less effective.
Which of the following observations best indicates to the nurse that a paraplegic client can adequately carry out activities of daily living at home after discharge?
- A. The client can shave himself and brush his teeth.
- B. The client can transfer himself into and out of his wheelchair.
- C. The client can maneuver his wheelchair without difficulty.
- D. The client can prepare his own well-balanced meals.
Correct Answer: B
Rationale: essential if client is to perform ADLs