A nurse is reviewing the ABG values of a client. The client has a pH of 7.2, PaCO2 of 60 mm Hg, and HCO3 of 25 mEq/L. The nurse should identify that the client has which of the following acid-base imbalances?
Respiratory alkalosis
Metabolic alkalosis
Respiratory acidosis
Metabolic acidosis
The Correct Answer is C
Respiratory acidosis.
Rationale:
- A. Incorrect. The client does not have respiratory alkalosis because respiratory alkalosis is characterized by a low PaCO2 (less than 35 mm Hg) and a high pH (greater than 7.45).
- B. Incorrect. The client does not have metabolic alkalosis because metabolic alkalosis is characterized by a high HCO3 (greater than 26 mEq/L) and a high pH (greater than 7.45). - C. Correct. The client has respiratory acidosis because respiratory acidosis is characterized by a high PaCO2 (greater than 45 mm Hg) and a low pH (less than 7.35).
- D. Incorrect. The client does not have metabolic acidosis because metabolic acidosis is characterized by a low HCO3 (less than 22 mEq/L) and a low pH (less than 7.35).
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale:
Attaching a prefilled syringe to the catheter inflation hub is a step performed after the catheter insertion to inflate the balloon, securing the catheter in the bladder. This action is not the first step and should not be done before cleansing the meatus and positioning the sterile drape.
Choice B rationale:
Positioning the sterile drape leaving the perineum exposed is a necessary step in maintaining the sterility of the procedure area. However, it is not the first action the nurse should take. Cleaning the client's meatus with an antiseptic solution is the initial step to prevent infection during catheter insertion.
Choice C rationale:
Cleaning the client's meatus with antiseptic solution is the first step in inserting an indwelling urinary catheter. This action helps to reduce the risk of urinary tract infection by minimizing the introduction of bacteria into the urethra.
Choice D rationale:
Lubricating the catheter with water-soluble gel is a step performed after cleansing the meatus and positioning the sterile drape. It facilitates the smooth insertion of the catheter into the urethra. However, it is not the first action to be taken.
Correct Answer is D
Explanation
Choice A rationale:
Sodium level of 142 mEq/L is within the normal range (135-145 mEq/L) for adults. However, normal ranges for children might vary slightly, but 142 mEq/L is not indicative of dehydration on its own.
Choice B rationale:
Respiratory rate of 22/min is within the normal range for a 3-year-old child (20-30 breaths/min) This rate alone does not provide evidence of dehydration.
Choice C rationale:
Potassium level of 3.9 mEq/L is within the normal range (3.5-5.1 mEq/L) for children. Like sodium, normal ranges for potassium may differ slightly in pediatric patients, but 3.9 mEq/L is not alarming on its own.
Choice D rationale:
Heart rate of 148/min is elevated for a 3-year-old child. Tachycardia is a common sign of dehydration in pediatric patients. This increased heart rate indicates the body's compensatory mechanism to maintain cardiac output in response to decreased blood volume, a typical consequence of dehydration.
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