A nurse is reviewing the arterial blood gas values for a client. The nurse should recognize that the values indicate which of the following acid-base imbalances?
The values are:
- pH: 7.56
- PaCO2: 55 mmHg
- HCO3: 33 mEq/L
Normal ranges:
- pH: 7.35-7.45
- PaCO2: 35-45 mmHg
- HCO3: 22-28 mEq/L
Metabolic Alkalosis
Metabolic Acidosis
Respiratory Alkalosis
Respiratory Acidosis
The Correct Answer is A
Choice A Reason:
Metabolic Alkalosis is correct. The pH of 7.56 is above the normal range (7.35-7.45), indicating alkalosis. The HCO3 level of 33 mEq/L is also above the normal range (22-28 mEq/L), which suggests a metabolic cause. In metabolic alkalosis, the body has an excess of bicarbonate or a loss of hydrogen ions.
Choice B Reason:
Metabolic Acidosis is incorrect. Metabolic acidosis is characterized by a low pH (below 7.35) and a low HCO3 level (below 22 mEq/L). The given values indicate alkalosis, not acidosis.
Choice C Reason:
Respiratory Alkalosis is incorrect. Respiratory alkalosis is characterized by a high pH (above 7.45) and a low PaCO2 (below 35 mmHg). In this case, the PaCO2 is elevated (55 mmHg), which does not align with respiratory alkalosis.
Choice D Reason:
Respiratory Acidosis is incorrect. Respiratory acidosis is characterized by a low pH (below 7.35) and a high PaCO2 (above 45 mmHg). While the PaCO2 is elevated, the pH indicates alkalosis, not acidosis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","D"]
Explanation
Choice A Reason:
Date of birth is an acceptable client identifier. The Joint Commission specifies that using the date of birth helps ensure accurate identification of the client. This identifier is unique to each individual and is less likely to be duplicated.
Choice B Reason:
Photograph identification is not typically listed as an acceptable identifier by the Joint Commission. While it can be useful in some settings, it is not one of the primary identifiers recommended for ensuring patient safety.
Choice C Reason:
Facility room number is not an acceptable client identifier. The Joint Commission explicitly states that room numbers should not be used as identifiers because they can change and are not unique to the individual.
Choice D Reason:
Client’s full name is an acceptable client identifier. Using the full name helps to accurately identify the client and match them with their medical records and treatment plans.
Correct Answer is C
Explanation
Choice A Reason:
The gastrocnemius muscle, located in the calf, is not a recommended site for intramuscular injections in newborns. This muscle is not typically used due to its small size and the difficulty in accessing it safely for an injection.
Choice B Reason:
The dorsogluteal muscle, located in the buttocks, is also not recommended for newborns. This site is avoided because of the risk of damaging the sciatic nerve and the relatively thick layer of subcutaneous fat, which can interfere with the absorption of the medication.
Choice C Reason:
The vastus lateralis muscle, located in the thigh, is the preferred site for intramuscular injections in newborns. This muscle is well-developed at birth and provides a large, easily accessible area for injections. It is also away from major blood vessels and nerves, making it a safe and effective site for administering medications like vitamin K.
Choice D Reason:
The ventrogluteal muscle, located on the side of the hip, is another site used for intramuscular injections, but it is not typically recommended for newborns. This site is more commonly used in older children and adults due to its deeper location and the need for precise anatomical knowledge to avoid complications.
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