A nurse evaluates the following arterial blood gas values in a patient: pH 7.48, PaO 98 mm Hg, PaCO 28 mm Hg, and HCO - 22 mEq/L (22 mmol/L). Which patient condition does the nurse correlate with these results?
Diarrhea and vomiting for 36 hours
Chronic obstructive pulmonary disease (COPD)
Anxiety-induced hyperventilation
Diabetic ketoacidosis and chronic obstructive pulmonary disease (COPD)
The Correct Answer is C
A. Diarrhea and vomiting for 36 hours:
Diarrhea and vomiting can lead to metabolic acidosis due to loss of bicarbonate and increased hydrogen ion concentration in the blood. However, the ABG values provided indicate respiratory alkalosis (high pH and low PaCO2), which is not consistent with metabolic acidosis caused by diarrhea and vomiting. Therefore, this choice does not correlate with the ABG values.
B. Chronic obstructive pulmonary disease (COPD):
COPD is a respiratory condition characterized by airflow limitation and increased airway resistance. It can lead to respiratory acidosis due to retention of carbon dioxide (PaCO2 levels would be elevated). The ABG values in the scenario show respiratory alkalosis (low PaCO2), which is the opposite of what would be expected in COPD. Therefore, this choice does not correlate with the ABG values provided.
C. Anxiety-induced hyperventilation:
Anxiety-induced hyperventilation is a common cause of respiratory alkalosis. During hyperventilation, there is excessive elimination of carbon dioxide (PaCO2 levels decrease), leading to an increase in pH (alkalosis). The ABG values in the scenario show a high pH (7.48) and low PaCO2 (28 mm Hg), consistent with respiratory alkalosis seen in hyperventilation due to anxiety.
D. Diabetic ketoacidosis and chronic obstructive pulmonary disease (COPD):
Diabetic ketoacidosis (DKA) is a metabolic condition characterized by hyperglycemia, ketosis, and metabolic acidosis (low pH and low bicarbonate levels). COPD, as mentioned earlier, can lead to respiratory acidosis due to retained carbon dioxide. Neither of these conditions correlates with the ABG values provided, which show respiratory alkalosis (high pH and low PaCO2). Therefore, this choice does not correlate with the ABG values.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","B","C","D"]
Explanation
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A. Measure the depth and width of the wound. Regular assessment and documentation of the wound’s size can help track the progress of healing and effectiveness of the treatment plan.
B. Educate the client about the need for antibiotics. If an infection is present, antibiotics may be necessary. It’s important for the client to understand the purpose and proper use of these medications.
C. Consult a nutritionist for a diet plan. Good nutrition is essential for wound healing. Certain nutrients, like protein, vitamin C, and zinc, can promote wound healing.
D. Remove any non-viable tissue. Debridement, or the removal of dead (non-viable) tissue, can help promote the healing of the wound by reducing the risk of infection and allowing healthy tissue to grow.
Correct Answer is A
Explanation
A. Urine output is greater than 0.5 mL/kg/hr
During the fluid resuscitation phase of burn management, one of the primary goals is to maintain adequate tissue perfusion and organ function by ensuring sufficient fluid intake. The best method for assessing the results of fluid resuscitation is by monitoring urine output. A urine output of greater than 0.5 mL/kg/hr is indicative of adequate renal perfusion and kidney function, suggesting that fluid resuscitation is effective in maintaining tissue perfusion and preventing complications such as acute kidney injury.
B. Serum hemoglobin is 11 gm/dL
Serum hemoglobin levels can be affected by various factors, including fluid resuscitation, blood loss, and other medical conditions. While monitoring hemoglobin levels is important in overall patient assessment, it is not the best method specifically for assessing the results of fluid resuscitation during the initial phase of burn management.
C. Breath sounds are clear bilaterally
Clear bilateral breath sounds indicate adequate lung function and ventilation but may not directly reflect the effectiveness of fluid resuscitation in maintaining tissue perfusion. Lung sounds can be influenced by factors such as lung injury from smoke inhalation or mechanical ventilation settings, which may not correlate directly with fluid resuscitation outcomes.
D. Heart rate is 122/min
Heart rate can be influenced by various factors such as pain, stress, medications, and underlying medical conditions. While monitoring heart rate is important in assessing patient status, it is not the most reliable method for specifically evaluating the results of fluid resuscitation during the fluid resuscitation phase of burn management.
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