Nokea
When a client needs oxygen therapy, what is the highest flow rate that oxygen can be delivered via nasal cannula?
- A. 2 liters/minute
- B. 4 liters/minute
- C. 6 liters/minute
- D. 8 liters/minute
Correct Answer: C
Rationale: The highest flow rate that oxygen can be delivered via nasal cannula is 6 liters/minute. Higher flow rates must be delivered by mask.
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A 46 year-old has returned from a heart catheterization and wants to get up to start walking 3 hours after the procedure. The nurse should:
- A. Tell the patient to remain with the leg straight for at least another hour and check the chart for activity orders.
- B. Allow the patient to begin limited ambulation with assistance.
- C. Recommend a physical therapy consultation for ambulation.
- D. Tell the patient to remain with leg straight for another 6 hours and check the chart for activity orders.
Correct Answer: A
Rationale: The patient should keep the leg straight for at least 4 hours.
A client is told that his test is positive, but in fact, the client does not have the disease tested for. Which type of false report is this an example of?
- A. positive
- B. false positive
- C. negative
- D. false negative
Correct Answer: B
Rationale: A false positive occurs when a test incorrectly indicates a disease is present, potentially leading to unnecessary treatment or anxiety.
Several passengers aboard an airliner suddenly become weak and suffer breathing difficulty. The diagnosis is likely to be:
- A. outbreak of Asian flu.
- B. Chemical exposure.
- C. bacterial pneumonia.
- D. allergic reaction.
Correct Answer: B
Rationale: The most likely cause of groups of individuals suddenly experiencing similar signs of illness all at once is a chemical exposure.
Which of the following is an indication for electroencephalography?
- A. paralysis
- B. neuropathy
- C. seizure disorder
- D. myocardial infarction
Correct Answer: C
Rationale: Electroencephalography is indicated for assessing clients with a seizure disorder.
Which medication might the physician order if the client expresses discomfort with being in the enclosed space of a CT scanner?
- A. Valium (diazepam)
- B. Clozaril (clozapine)
- C. Catapress (clonidine)
- D. Lasix (furosemide)
Correct Answer: A
Rationale: Valium, a sedative, is appropriate to reduce anxiety and discomfort in a confined CT scanner, unlike the other medications, which have different indications.