A nurse is caring for a client who has acute kidney injury (AKI). Which of the following arterial blood gas values would the nurse expect this client to have?
pH 7.49, HCO3 24, PaCO2 30
pH 7.26, HCO3 24, PaCO2 46
pH 7.26, HCO3 14, PaCO2 30
pH 7.49, HCO3 30, PaCO2 40
The Correct Answer is C
Choice A Reason: This choice is incorrect because it indicates respiratory alkalosis, not AKI. Respiratory alkalosis is a condition in which the lungs eliminate too much carbon dioxide (CO2) from the blood, resulting in a low level of CO2 (PaCO2) and a high level of pH. A normal PaCO2 range is 35 to 45 mm Hg, and a normal pH range is 7.35 to 7.45, so a value of 30 mm Hg and 7.49 indicate respiratory alkalosis.
Choice B Reason: This choice is incorrect because it indicates respiratory acidosis, not AKI. Respiratory acidosis is a condition in which the lungs cannot eliminate enough CO2 from the blood, resulting in a high level of CO2 (PaCO2) and a low level of pH. A value of 46 mm Hg and 7.26 indicate respiratory acidosis.
Choice C Reason: This choice is correct because it indicates metabolic acidosis, which is a common complication of AKI. Metabolic acidosis is a condition in which the body produces too much acid or loses too much base, resulting in a low level of bicarbonate (HCO3) and a low level of pH. A normal HCO3 range is 22 to 26 mEq/L, so a value of 14 mEq/L indicates metabolic acidosis. The low PaCO2 value (30 mm Hg) is due to the respiratory compensation mechanism that tries to restore the acid-base balance by increasing the ventilation and eliminating more CO2.
Choice D Reason: This choice is incorrect because it indicates metabolic alkalosis, not AKI. Metabolic alkalosis is a condition in which the body loses too much acid or gains too much base, resulting in a high level of bicarbonate (HCO3) and a high level of pH. A value of 30 mEq/L and 7.49 indicate metabolic alkalosis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A Reason: Cause of the burn is not the nurse's priority when assessing the severity of the client's burns. The cause of the burn may indicate the type and duration of exposure, such as thermal, chemical, electrical, or radiation, which can affect the depth and extent of injury. However, these factors are secondary to ensuring adequate oxygenation and ventilation.
Choice B Reason: Age of the client is not the nurse's priority when assessing the severity of the client's burns. The age of the client may influence the response to burn injury, such as healing time, infection risk, and fluid requirements.
However, these factors are secondary to ensuring adequate oxygenation and ventilation.
Choice C Reason: Associated medical history is not the nurse's priority when assessing the severity of the client's burns. The associated medical history may affect the outcome and prognosis of burn injury, such as pre-existing conditions, medications, or allergies. However, these factors are secondary to ensuring adequate oxygenation and ventilation.
Choice D Reason: Location of the burn is the nurse's priority when assessing the severity of the client's burns. The location of the burn can indicate the potential for life-threatening complications, such as airway obstruction, inhalation injury, or impaired circulation. The nurse should assess for signs and symptoms of respiratory distress, such as stridor, wheezes, or cyanosis, and prepare for endotracheal intubation if needed. The nurse should also monitor for signs and symptoms of compartment syndrome, such as pain, pallor, paresthesia, pulselessness, or paralysis, and report any findings to the provider. The location of the burn can also affect the functional and cosmetic outcomes, such as vision loss, facial disfigurement, or joint contractures. The nurse should provide appropriate wound care, pain management, and rehabilitation as prescribed. Assessing for location of burn is essential to prevent further injury and preserve vital functions.
Correct Answer is B
Explanation
Choice A Reason: This is incorrect because the client is not in deep coma, as the Glasgow Coma Scale (GCS) score ranges from 3 to 15, with 3 being the lowest possible score and indicating deep coma or death.
Choice B Reason: This is correct because the client needs total nursing care, as the GCS score of 6 indicates a severe brain injury and a very low level of consciousness. The client may only open his eyes to pain, make incomprehensible sounds, and have abnormal flexion to pain.
Choice C Reason: This is incorrect because the client is not alert and oriented, as the GCS score of 6 indicates a severe brain injury and a very low level of consciousness. The client may not be able to follow commands, answer questions, or recognize people or places.
Choice D Reason: This is incorrect because the client is not responding to verbal stimuli, as the GCS score of 6 indicates a severe brain injury and a very low level of consciousness. The client may only respond to painful stimuli, such as pinching or squeezing.
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