A nurse is reviewing the laboratory results of a client who has DKA. The client's ABG results are pH 7.30, PaCO₂ 34 mm Hg and HCO₃ 21 mEq/L. The nurse should identify that these values indicate which of the following acid-base imbalances?
Respiratory alkalosis
Metabolic alkalosis
Metabolic acidosis
Respiratory acidosis
The Correct Answer is C
A nurse reviewing the laboratory results of a client who has DKA should identify that the client's ABG results of pH 7.30, PaCO₂ 34 mm Hg and HCO₃ 21 mEq/L indicate metabolic acidosis. Metabolic acidosis is an acid-base imbalance characterized by a low pH (less than 7.35) and a low bicarbonate level (less than 22 mEq/L).
The other options are not correct.
a) Respiratory alkalosis is an acid-base imbalance characterized by a high pH (greater than 7.45) and a low PaCO₂ (less than 35 mm Hg).
b) Metabolic alkalosis is an acid-base imbalance characterized by a high pH (greater than 7.45) and a high bicarbonate level (greater than 26 mEq/L).
d) Respiratory acidosis is an acid-base imbalance characterized by a low pH (less than 7.35) and a high PaCO₂ (greater than 45 mm Hg).
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
When a client with active pulmonary tuberculosis (TB) receives appropriate treatment and their sputum cultures consistently show negative results for Mycobacterium tuberculosis, it indicates that the client is no longer contagious. Negative sputum cultures indicate that the infectious bacteria are no longer present or viable in the respiratory secretions, reducing the risk of transmitting the disease to others.
"You will need an annual TB skin test to see if the infection has returned": While it is important for individuals with a history of TB to undergo periodic screening, such as an annual TB skin test or interferon-gamma release assay (IGRA), to detect latent TB infection or potential reactivation, this response is not specifically related to a client with active pulmonary TB.
"You will take medication to treat your illness for the rest of your life": This response is incorrect because active pulmonary TB is typically treated with a combination of antimicrobial medications for a specific duration, usually ranging from 6 to 9 months. It is not a lifelong treatment.
However, individuals with latent TB infection may require longer-term treatment to prevent the development of active TB disease.
"You can expect the medications to turn your urine a blue-green color": This response is incorrect as medications used to treat TB do not typically cause urine discoloration. Medications such as rifampin can cause various side effects, including orange discoloration of bodily fluids like urine, tears, or sweat, but a blue-green color is not associated with TB medications.
Correct Answer is C
Explanation
The nurse should apply a heat pack 5 to 10 minutes prior to the procedure when planning to obtain blood from a newborn via a heel stick. This helps to increase blood flow to the area and makes it easier to obtain the specimen.
a) Puncturing the heel to a depth of 4 mm is too deep and can cause injury to the newborn. The recommended depth for a heel stick is 2.4 mm or less.
b) Withholding feeding prior to collecting the specimen is not necessary.
d) Elevating the newborn's foot for 15 minutes following the procedure is not necessary.
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