Interpret the following arterial blood gas: pH 7.43: HCO3 35: Paco 46.

Respiratory acidosis.

Respiratory alkalosis.

Metabolic acidosis.

Metabolic alkalosis.

Answer and Explanation

The Correct Answer is D

Choice A rationale
Respiratory acidosis is characterized by a pH less than 7.35 and a PaCO2 greater than 454. In this case, the pH is 7.43, which is within the normal range, and the PaCO2 is 46, which is slightly above the normal range. Therefore, this does not indicate respiratory acidosis.
Choice B rationale
Respiratory alkalosis is characterized by a pH greater than 7.45 and a PaCO2 less than 354. In this case, the pH is 7.43, which is within the normal range, and the PaCO2 is 46, which is slightly above the normal range. Therefore, this does not indicate respiratory alkalosis.
Choice C rationale
Metabolic acidosis is characterized by a pH less than 7.35 and a HCO3 less than 224. In this case, the pH is 7.43, which is within the normal range, and the HCO3 is 35, which is above the normal range. Therefore, this does not indicate metabolic acidosis.
Choice D rationale
Metabolic alkalosis is characterized by a pH greater than 7.45 and a HCO3 greater than 264. In this case, the pH is 7.43, which is within the normal range, and the HCO3 is 35, which is above the normal range. Therefore, this indicates metabolic alkalosis.

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Correct Answer is B

Explanation

The nurse completed the incident report at 1600.

Step 1 is to understand the 24-hour clock format. In this format, the hours of the day run 0-23, midnight to midnight.

Step 2 is to convert the time the nurse administered the medication (0900) to the 12-hour clock format. This is 9 a.m.

Step 3 is to add seven hours to this time (the time that passed before the nurse realized a medication error had occurred). 9 a.m. + 7 hours = 4 p.m.

Step 4 is to convert this time back to the 24-hour clock format. 4 p.m. is 1600 in the 24-hour clock format.

A. The nurse may use white out to remove the incorrect documentation and write the correct information over the white out. B. The nurse should use a permanent marker to eliminate all incorrect documentation from view and initial the mistake. C. The nurse should cross out the error with a double line so the original documentation may be seen and date the new entry. D. The nurse should cross out the error with a single line so the original documentation can be seen and sign and date the correction.

Correct Answer is D

Explanation

Choice A rationale
Using white out to remove incorrect documentation and writing the correct information over the white out is not an acceptable practice according to CMS guidelines. This method does not allow for the original documentation to be seen, which is a requirement for making corrections to documentation.
Choice B rationale
Using a permanent marker to eliminate all incorrect documentation from view and initialing the mistake is also not an acceptable practice according to CMS guidelines. This method completely obscures the original documentation, which goes against the CMS requirement that all original content must be clearly identifiable.
Choice C rationale
Crossing out the error with a double line so the original documentation may be seen and dating the new entry is not specifically mentioned in the CMS guidelines. While this method does allow for the original documentation to be seen, it’s not clear whether it adheres to all CMS guidelines.
Choice D rationale
According to CMS guidelines, when making corrections to documentation, the nurse should cross out the error with a single line so the original documentation can be seen and sign and date the correction. This method ensures that all original content is clearly identifiable, which is a requirement for making corrections to documentation.

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Interpret the following arterial blood gas: pH 7.43: HCO3 35: Paco 46.

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Naxlex Comprehensive Predictor Exams

A nurse administers medication to a patient at 0900. Seven hours later, the nurse realizes a medication error has occurred and completes an incident report. At what time, in 24-hour clock format, did the nurse complete the incident report?

Correct Answer is B

Explanation

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Correct Answer is D

Explanation

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