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The nurse is caring for a client with a history of chronic obstructive pulmonary disease (COPD).
- A. Which arterial blood gas result is expected in a client with chronic COPD?
- B. pH 7.40, PaCO2 40 mmHg, PaO2 90 mmHg.
- C. pH 7.32, PaCO2 50 mmHg, PaO2 70 mmHg.
- D. pH 7.45, PaCO2 30 mmHg, PaO2 95 mmHg.
- E. pH 7.30, PaCO2 35 mmHg, PaO2 85 mmHg.
Correct Answer: B
Rationale: Chronic COPD causes CO2 retention, leading to a compensated respiratory acidosis with low pH (7.32), high PaCO2 (50 mmHg), and low PaO2 (70 mmHg) due to impaired gas exchange. Normal or acute values are incorrect.
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A client admitted with a severe head injury following an MVA is placed on a ventilator, and hyperventilation is maintained. The primary reason for maintaining hyperventilation is:
- A. To increase oxygen to the brain
- B. To dilate the cerebral blood volume
- C. To increase the cerebral blood volume
- D. To promote cerebral vasoconstriction and decrease cerebral blood flow
Correct Answer: D
Rationale: Hyperventilation reduces $\mathrm{CO}_2$, causing cerebral vasoconstriction, which decreases cerebral blood flow and intracranial pressure in head injuries.
A client with acute leukemia has developed oral ulcerations. The nurse can increase the client's comfort by suggesting that he:
- A. Avoid brushing his teeth until the ulcers heal.
- B. Rinse his mouth frequently with normal saline.
- C. Rinse his mouth frequently with hydrogen peroxide.
- D. Cleanse his teeth and mouth with lemon and glycerin swabs.
Correct Answer: B
Rationale: Normal saline rinses are gentle and help keep the mouth clean without irritating oral ulcerations.
The nurse is caring for a client with a history of type 1 diabetes who is receiving insulin lispro (Humalog) 8 units before meals. Which of the following symptoms should the nurse report immediately?
- A. Mild fatigue.
- B. Sweating and confusion.
- C. Occasional thirst.
- D. Mild headache.
Correct Answer: B
Rationale: Sweating and confusion indicate hypoglycemia, a medical emergency with insulin lispro. Options A, C, and D are less urgent.
A client with symptoms supportive of a diagnosis of Guillain-Barré syndrome.
The nurse knows that which of the following symptoms would be supportive of a diagnosis of Guillain-Barré syndrome?
- A. Hemiplegia, hypertension, tachycardia.
- B. Respiratory failure, flaccid paralysis, urinary retention.
- C. Peripheral edema, hypertension, pulmonary congestion.
- D. Diminished reflexes, pain, paresthesia.
Correct Answer: B
Rationale: Strategy: All parts of the answer choice must be correct in order for the answer to be correct. (1) relates to a CVA (2) correct-classic symptoms include respiratory failure and flaccidity due to paralysis of the muscles and urinary retention due to loss of sensation (3) relates to pulmonary edema (4) relates to peripheral nerve problems
A nurse arranges for a interpreter to facilitate communication between the health care team and a non-English speaking client. To promote therapeutic communication, the appropriate action for the nurse to remember when working with an interpreter is to
- A. promote verbal and nonverbal communication with both the client and the interpreter
- B. speak only a few sentences at a time and then pause for a few moments
- C. plan that the encounter will take more time than if the client spoke English
- D. ask the client to speak slowly and to look at the person spoken to
Correct Answer: A
Rationale: The nurse should communicate with the client and the family, not with the interpreter. Culturally appropriate eye contact, gestures, and body language toward the client and family are important factors to enhance rapport and understanding. Maintain eye contact with both the client and interpreter to elicit feedback and read nonverbal cues.