A nurse is caring for a post-operative patient with a respiratory rate of 9 breaths/minute secondary to general anesthesia effects and incisional pain. Which arterial blood gas (ABG) would the nurse anticipate?
pH 7.50, pO2 85, pCO2 35, HCO3 30 mEq/L
pH 7.30, pO2 90, pCO2 35, HCO3 20 mEq/L
pH 7.50, pO2 95, pCO2 25, HCO3 22 mEq/L
pH 7.30, pO2 80, pCO2 55, HCO3 22 mEq/L
The Correct Answer is D
Choice A reason: The values pH 7.50, pO2 85, pCO2 35, HCO3 30 mEq/L indicate alkalosis with a high bicarbonate level, which is not consistent with the patient’s slow respiratory rate that would typically lead to respiratory acidosis.
Choice B reason: The values pH 7.30, pO2 90, pCO2 35, HCO3 20 mEq/L indicate metabolic acidosis with normal pCO2, which does not align with the respiratory issue described (hypoventilation).
Choice C reason: The values pH 7.50, pO2 95, pCO2 25, HCO3 22 mEq/L indicate respiratory alkalosis, which is characterized by a low pCO2. This is not consistent with the patient’s hypoventilation, which would lead to elevated pCO2 levels.
Choice D reason: The values pH 7.30, pO2 80, pCO2 55, HCO3 22 mEq/L indicate respiratory acidosis, which aligns with the patient’s hypoventilation due to anesthesia effects and incisional pain. The elevated pCO2 and decreased pH are consistent with reduced respiratory rate and shallow breathing.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: Percutaneous Coronary Intervention (PCI) is a procedure used to open narrowed coronary arteries, usually with a balloon or stent. It is not a diagnostic test for assessing heart valves but rather a treatment for coronary artery disease.
Choice B reason: Echocardiography is a non-invasive imaging test that uses ultrasound waves to create detailed images of the heart's structures, including the heart valves. It allows for the assessment of valve function, structure, and blood flow, making it an essential tool for diagnosing valvular heart disease.
Choice C reason: Exercise testing, also known as a stress test, evaluates the heart's response to physical activity. While it can provide information on how well the heart handles increased workload and detect issues like ischemia, it is not specifically used for assessing heart valves.
Choice D reason: Electrocardiography (ECG or EKG) records the electrical activity of the heart and is used to detect arrhythmias, heart attacks, and other cardiac conditions. However, it does not provide detailed information about the heart valves' structure or function.
Correct Answer is ["A","C","D","E"]
Explanation
Choice A reason: Providing at least 5000 kcal/day is essential for a patient with burn injuries. Burns significantly increase the body's metabolic rate and caloric needs to support the healing process and prevent catabolism. Ensuring an adequate caloric intake helps meet the energy demands required for tissue repair and recovery.
Choice B reason: Starting an oral diet on the first day may not be appropriate for all burn patients, particularly those with extensive burns or those who are not yet stable. Nutrition needs should be carefully assessed, and feeding may begin via alternative methods such as enteral nutrition until the patient is ready for oral intake.
Choice C reason: Administering a diet high in protein is crucial for burn patients, as protein is essential for wound healing, maintaining lean body mass, and supporting the immune system. Protein intake should be increased to help repair damaged tissues and promote recovery.
Choice D reason: Collaborating with a registered dietitian is important to create an individualized nutrition plan that meets the specific needs of the burn patient. A dietitian can provide expertise in calculating caloric and protein requirements, recommending appropriate supplements, and monitoring the patient's nutritional status.
Choice E reason: Offering frequent high-calorie snacks helps ensure that the patient meets their increased caloric needs. Small, frequent meals and snacks can be more manageable for patients with reduced appetite or those who have difficulty consuming large meals. High-calorie snacks provide additional energy to support healing and recovery.
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