Nursing Elites

1. Patients exhibiting signs of cyanosis will:

• A. show signs of hyperoxia.
• B. have increased O2 saturation.
• C. have blood levels of CO2 higher than O2 levels.
• D. None of the above.

Correct answer: C

Rationale: Cyanosis is a bluish discoloration of the skin and mucous membranes resulting from low blood oxygen levels. When a patient exhibits cyanosis, it indicates that their blood is poorly oxygenated, leading to a higher concentration of CO2 compared to oxygen. Options A and B are incorrect as cyanosis is associated with low oxygen levels, not hyperoxia or increased O2 saturation. Therefore, the correct answer is that patients exhibiting cyanosis will have blood levels of CO2 higher than O2 levels.

2. During a heritage assessment, which question is most appropriate for the nurse to ask?

• A. "Do you smoke?"?
• B. "What is your religion?"?
• C. "Do you have a history of heart disease?"?
• D. "How many years have you lived in the United States?"?

Correct answer: D

Rationale: During a heritage assessment, it is crucial for the nurse to ask questions related to a person's country of ancestry, years in the United States, cultural practices, beliefs, and values. By asking about the number of years lived in the United States, the nurse can gain insights into the individual's cultural background and heritage. Options B, C, and A are not directly related to assessing heritage. Asking about religion only addresses one aspect of heritage, while smoking history and health history do not provide a comprehensive view of a person's heritage.

3. When teaching a patient to use the three-point gait technique of crutch use:

• A. The injured leg moves ahead at the same time as both crutches.
• B. One crutch moves at a time and is then followed by the injured leg.
• C. Both crutches move ahead at the same time followed by both legs at the same time.
• D. None of the above are correct.

Correct answer: A

Rationale: The correct technique for a three-point gait involves the injured leg moving simultaneously with both crutches, followed by the uninjured leg. This gait pattern is utilized when the patient is unable to bear full weight on one of their legs. Choice A accurately describes the appropriate sequence of movements for the three-point gait technique. Choices B and C do not accurately reflect the correct pattern of movement during the three-point gait technique, making them incorrect. Choice D is incorrect as there is a correct option among the choices provided.

4. The nurse is conducting a health fair for older adults. Which statement is true regarding vital sign measurements in aging adults?

• A. The pulse is easier to palpate due to the rigidity of the blood vessels.
• B. An increased respiratory rate and a shallower inspiratory phase are expected findings.
• C. A widened pulse pressure occurs from changes in the systolic and diastolic blood pressures.
• D. Changes in the body's temperature regulatory mechanism decrease the older adult's likelihood of developing a fever.

Correct answer: B

Rationale: Aging causes a decrease in vital capacity and decreased inspiratory reserve volume. As a result, the examiner may observe a shallower inspiratory phase and an increased respiratory rate in older adults. Contrary to common belief, the increased rigidity of arterial walls actually makes the pulse easier to palpate in aging adults. Pulse pressure is widened, not decreased, due to changes in systolic and diastolic blood pressures. Furthermore, changes in the body's temperature regulatory mechanism make older individuals less likely to develop a fever but more susceptible to hypothermia.

5. Which of the following may represent an upper airway obstruction?

• A. Retractions
• B. Elongated expiratory phase
• C. Stridor
• D. Expiratory wheezing

Correct answer: C

Rationale: Stridor is the sound produced by turbulent airflow through a partially obstructed upper airway. It is a classic sign of upper airway obstruction. While an elongated expiratory phase may indicate lower airway obstruction, stridor specifically points to an upper airway issue. Retractions are also often seen in upper airway obstruction due to the increased effort of breathing. Expiratory wheezing, on the other hand, is more indicative of lower airway conditions such as asthma or chronic obstructive pulmonary disease (COPD).

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