Based on the ABG results: pH 7.33, CO2: 50, HCO3: 22, what acid-base imbalance is present?

Respiratory acidosis

Metabolic acidosis

Metabolic alkalosis

Respiratory alkalosis

Answer and Explanation

The Correct Answer is A

Choice A reason: Respiratory acidosis is indicated by a pH lower than the normal range (7.35-7.45), combined with a CO2 level higher than the normal range (35-45 mmHg). In this scenario, the pH is 7.33, which is slightly acidic, and the CO2 is 50, which is elevated, suggesting that the lungs are not adequately removing CO2.

Choice B reason: Metabolic acidosis is characterized by a low pH and a low HCO3 level. However, in this case, the HCO3 is normal (22-26 mEq/L), ruling out metabolic acidosis.

Choice C reason: Metabolic alkalosis would present with a high pH and a high HCO3 level. Since the pH is low, metabolic alkalosis is not the correct answer.

Choice D reason: Respiratory alkalosis is characterized by a high pH and a low CO2 level. Given that the pH is low and the CO2 is high, respiratory alkalosis is not the condition indicated by these ABG results.

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Free Nursing Study Resources

Correct Answer is ["1"]

Explanation

Step 1: Identify the prescribed dose and the dose per tablet. The prescribed dose is 100 mcg and the dose per tablet is also 100 mcg.

Step 2: Divide the prescribed dose by the dose per tablet to find out how many tablets are needed. So, 100 mcg (prescribed dose) ÷ 100 mcg/tablet (dose per tablet) = 1 tablet

A. Elevate the patient in a high Fowler's position and encourage the use of an incentive spirometer and coughing. B. Increase oxygen to 70%. C. Switch oxygen to a rebreather mask. D. Position the patient prone and have the respiratory therapist perform postural drainage.

Correct Answer is A

Explanation

Choice A reason: Elevating the patient in a high Fowler's position can help improve lung expansion and oxygenation, and using an incentive spirometer along with coughing can help prevent atelectasis and pneumonia, which are common postoperative complications.

Choice B reason: Increasing oxygen to 70% without a specific indication could lead to oxygen toxicity, especially without assessing the patient's current oxygenation status.

Choice C reason: Switching to a rebreather mask is not indicated based on the given ABG results and could lead to CO2 retention.

Choice D reason: Positioning the patient prone and performing postural drainage are not typically first-line interventions for a patient one day post-thoracotomy and could be contraindicated due to the recent surgery.

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Based on the ABG results: pH 7.33, CO2: 50, HCO3: 22, what acid-base imbalance is present?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is preparing to administer levothyroxine 100 mcg PO to a client who has hypothyroidism. Available is levothyroxine 100 mcg/tablet. How many tablets should the nurse administer?" (Round the answer to the nearest whole number. Use leading zeros if it applies.)

Correct Answer is ["1"]

Explanation

A patient is one day postoperative following an open thoracotomy. The patient is receiving oxygen mist at 40% by Venturi mask. The patient's ABG results are: pH 7.31, PaO2 93 mm Hg, PaCO2 50 mm Hg, HCO3 25 mEq/L. Which of the following is an appropriate action for the nurse?

Correct Answer is A

Explanation

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