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. What ethical principle has led to the need for informed consent?

Correct answer: A

Rationale: Autonomy is the ethical principle that emphasizes an individual's right to make their own decisions if they are mentally competent. Informed consent is a direct result of this principle, as it ensures that patients are fully informed before agreeing to any medical intervention. Autonomy is crucial in healthcare as it respects patients' rights and promotes self-determination. Justice, fidelity, and beneficence are important ethical principles in healthcare, but they do not directly lead to the need for informed consent. Justice focuses on fairness and equal treatment, fidelity on trustworthiness and loyalty, and beneficence on doing good for the patient's benefit.

3. A client has a right-sided chest tube with 50 cc of serosanguinous fluid in the collection chamber and air bubbles are collecting in the water seal chamber. What is the most appropriate action for the nurse to take at this time?

Correct answer: C

Rationale: The water seal of a chest tube acts as a one-way valve. Air bubbles in the water seal indicate a leak between the client and the chamber. The nurse should briefly clamp the tube near the client's chest to locate the source of the leak. Once identified, the nurse should unclamp the tubing and notify the physician immediately. Choice A is incorrect because air bubbles in the water seal chamber are not a normal finding and indicate a leak. Choice B is incorrect as stripping the tubing could aggravate the issue and is not the initial appropriate action. Choice D is incorrect as it does not address the immediate need to locate and address the leak.

4. The nurse is assessing an infant with developmental dysplasia of the hip. Which finding would the nurse anticipate?

Correct answer: A

Rationale: The correct answer is 'Unequal leg length.' Shortening of a leg is a common sign of developmental dysplasia of the hip. Limited adduction (Choice B) may be present but is less specific to developmental dysplasia of the hip. Diminished femoral pulses (Choice C) are not typically associated with developmental dysplasia of the hip. Symmetrical gluteal folds (Choice D) are a normal finding and would not be expected in a patient with developmental dysplasia of the hip.

5. Which behavior observed by the nurse indicates a suspicion that a depressed adolescent client may be suicidal?

Correct answer: A

Rationale: The correct answer is when the adolescent gives away a DVD player and a cherished autographed picture of a performer. This behavior is concerning because a depressed suicidal client often gives away things of value as a way of saying goodbye and wanting to be remembered. Choices B, C, and D all involve anger and acting-out behaviors, which are common in adolescents but do not specifically indicate suicidal ideation. Running out of group therapy, swearing, and going to her room, becoming angry and slamming the phone receiver, or getting upset when her roommate borrows her clothes are not clear indications of suicidal thoughts.

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