George, an 85yearold man with a history of chronic obstructive pulmonary disease, was rushed to the emergency department with increasing shortness of breath, restlessness, and difficulty communicating due to his inability to complete a sentence. On assessment, tachycardia and a bounding pulse were noted. Wheezes could be heard in the lower lobes. His blood gas shows a pH of 7.3, PaCO2 of 68 mmHg, HCO3 of 28 mmol/L, and PaO2 of 60 mmHg. How would you interpret this?
Metabolic Acidosis, Uncompensated
Metabolic Acidosis, Partially Compensated
Respiratory Acidosis, Partially Compensated
Respiratory Acidosis, Uncompensated
The Correct Answer is C
Choice A reason: Metabolic acidosis is characterized by a low pH and a low HCO3. However, George's HCO3 is within normal range, indicating that metabolic acidosis is not the primary issue.
Choice B reason: Partially compensated metabolic acidosis would present with a low pH and a low HCO3, along with a low PaCO2 as the body attempts to compensate. George's PaCO2 is elevated, which is not consistent with this condition.
Choice C reason: George's high PaCO2 and near normal HCO3 suggest that his primary issue is respiratory acidosis. The body has begun to compensate by retaining HCO3, making it partially compensated.
Choice D reason: Uncompensated respiratory acidosis would present with an elevated PaCO2 and a normal HCO3. Since George's HCO3 is elevated, it indicates partial compensation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason: Dehydration is a concern with fever, but it is not a direct complication of hypothermia blanket therapy. It is important to ensure adequate hydration, but the primary concern with hypothermia therapy is not dehydration.
Choice B reason: Burns could occur if the hypothermia blanket malfunctions or is used improperly. However, modern devices have safety features to prevent burns, making this a less likely complication.
Choice C reason: Shivering is a natural response to cooling and can occur as the body attempts to generate heat in response to the lowered temperature from the hypothermia blanket. It can be counterproductive to the therapy and may need to be controlled with medications.
Choice D reason: Seizures are not a typical complication of hypothermia blanket therapy. While meningitis can cause seizures due to inflammation of the brain, the hypothermia blanket itself does not induce seizures.
Correct Answer is B
Explanation
Choice A reason: The visibility of chest tube eyelets is not typically a concern unless there is evidence that the tube is dislodged. In normal circumstances, the eyelets may not be visible, and this does not necessarily indicate a need for intervention.
Choice B reason: The development of subcutaneous emphysema, which is the presence of air in the subcutaneous tissue, can be a sign of a serious complication such as a pneumothorax. It requires immediate assessment and possible intervention to prevent further complications.
Choice C reason: Tidal fluctuation in the water seal chamber is a normal finding when a chest tube is in place. It indicates that the system is patent and functioning correctly as it reflects the pressure changes in the pleural space during respiration.
Choice D reason: Continuous bubbling in the suction control chamber may indicate an air leak in the system, which could be normal if the system is set to continuous suction. However, if the bubbling is vigorous and the system is not set to continuous suction, it may indicate a new air leak and require intervention.
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