A patient admitted with chronic obstructive pulmonary disease is experiencing a change in his respiratory and mental status. The nurse is aware that the most accurate measurement of the concentration of oxygen in the patient's blood is:
A) A capillary blood sample
B) Pulse oximetry
C) An arterial blood gas studies
D) Assessment of the patient's nail beds
Ans: C
Feedback: An arterial blood gas is the most accurate way to measure oxygen concentration in the blood.
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A patient with primary insomnia asks the nurse why day naps do not compensate for a lost night's sleep. Select the nurse's best reply
a. "Circadian cycles give daytime naps a structure different from nighttime sleep.". b. "The body clock operates on a 25-hour cycle, making nap effectiveness unpredictable.". c. "It is a matter of habit and expectation. We expect to be more refreshed from a night's sleep.". d. "Sleep restores homeostasis but works more efficiently when aided by melatonin secreted at night.".
The nurse working in an adolescent prenatal clinic knows that the patients 15–17 years old:
1. Are more at ease with their individuality. 2. See authority as resting with parents. 3. Are able to solve problems and make decisions. 4. Seek independence and identify with their peer group.
What is the purpose of subgroup analyses?
A) Random heterogeneity B) Nonrandom heterogeneity C) Sensitivity analysis D) Nonrelated effects
The five-step process for resolving ethical issues involves collecting information about the situation, stating the dilemma, listing all possible courses of action, and which of the following pairs of steps?
a. setting goals and working toward the goals b. analyzing the advantages and disadvantages of each course of action and making the decision c. implementing a variety of courses of action and evaluating which course of action is the best d. surveying others on their opinions and making a choice of action based on the best rationale provided