a client with asthma is being admitted for breathing dificulties his arterial blood gas results are ph 726 pco2 49 pao2 90 and hco3 21 which of the f
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NCLEX-RN

Health Promotion and Maintenance NCLEX RN Questions

1. A client with asthma is being admitted for breathing difficulties. His arterial blood gas results are pH 7.26, PCO2 49, PaO2 90, and HCO3- 21. Which of the following best describes this condition?

Correct answer: A

Rationale: In this case, the client's arterial blood gas results show a pH of 7.26 and a PCO2 of 49, both of which are abnormal. A pH below the normal range of 7.35-7.45 indicates acidosis. The elevated PCO2 of 49 mmHg suggests respiratory acidosis as the primary issue. The normal range for PCO2 is 35-45 mmHg, so a value of 49 indicates the retention of excess CO2, leading to acidosis. The low HCO3- level of 21 also supports the presence of metabolic acidosis; however, the primary abnormality is respiratory, making this an uncompensated respiratory acidosis. Therefore, the correct answer is 'Uncompensated respiratory acidosis.' Choice B, 'Compensated respiratory alkalosis,' is incorrect because the client's pH is acidic, not alkalotic. Additionally, there is no compensation occurring for the primary respiratory acidosis indicated by the elevated PCO2. Choice C, 'Uncompensated metabolic acidosis,' is incorrect because while the HCO3- level is low, the primary issue indicated by the elevated PCO2 is respiratory acidosis. Choice D, 'Compensated metabolic alkalosis,' is incorrect since the arterial blood gas results do not support a metabolic alkalosis. The low HCO3- level would typically be seen in metabolic acidosis, but in this case, the primary issue is respiratory acidosis.

2. Elderly patients are more prone to dehydration than younger people because the elderly ___________.

Correct answer: D

Rationale: Elderly patients are prone to dehydration because they have a lower and diminished sense of thirst. This reduced sensation of thirst makes them less likely to drink an adequate amount of fluids, leading to dehydration. While it is true that elderly individuals may also have changes such as decreased stomach mucus production and saliva production, these factors do not directly contribute to dehydration. Drinking more coffee and tea, as mentioned in choice A, is not a consistent behavior among all elderly individuals and is not a primary reason for their increased risk of dehydration.

3. A client is refusing to undergo any more treatments in the hospital and wants to leave against medical advice. When the nurse requests the client to sign an AMA order, the client refuses and leaves. What is the next action of the nurse?

Correct answer: D

Rationale: The nurse cannot force the client to stay in the hospital to receive treatment or to sign an AMA order. It is essential to respect the client's autonomy and decision-making capacity. While involving security or pressuring the client through the physician or spouse may seem like options, they are not appropriate in this situation. The nurse should allow the client to leave if they are competent to make that decision, document the refusal in the client's chart to ensure all actions are appropriately documented, and follow institutional policies for patients leaving against medical advice.

4. A nurse is assigned to care for a deaf client. During her lunch hour, she visits the hospital library and reads more about deaf culture in order to better provide appropriate care for her client. This action is an example of:

Correct answer: A

Rationale: Cultural knowledge involves seeking information and educating oneself about different cultural groups. In this scenario, the nurse is demonstrating cultural knowledge by learning more about deaf culture to improve the care provided to the deaf client. This proactive approach helps in understanding the client's background, beliefs, and communication preferences, leading to better outcomes. 'Cultural noise' and 'Cultural divide' are incorrect as they do not reflect the nurse's positive action of seeking knowledge to enhance care. 'Cultural diversity' is also incorrect as it does not accurately describe the nurse's specific action of acquiring knowledge about a particular culture.

5. A nurse is required to float to another unit within the hospital where he is asked to care for a client on a ventilator. The nurse is uncomfortable with this assignment, as he has not had a ventilated client since nursing school. What is the nurse's most appropriate response?

Correct answer: A

Rationale: When floating to another unit and asked to take an assignment that falls outside a nurse's comfort zone, the nurse should notify the area supervisor of the level of discomfort and request a different assignment. Caring for ventilated clients typically falls within the scope of nursing practice; however, discomfort with the situation may not necessarily be overcome by accepting the assignment. Alternatively, the effects could be harmful to the client if the nurse is unfamiliar with this type of care. Requesting a different assignment is the most appropriate response in this situation, ensuring patient safety and the nurse's comfort level. Stating that the client's needs are outside the nurse's scope of practice (Choice B) may not be accurate, as caring for ventilated clients usually falls within the scope of nursing practice. Accepting the assignment (Choice C) without addressing the discomfort may compromise patient safety. Requesting to return to the home unit (Choice D) does not address the immediate need of caring for the ventilated client and may delay appropriate care.

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