A nurse is reviewing the ABGs of a client who has pneumonia. The nurse should identify which of the following findings is an indication of respiratory acidosis.
PaO2 86 mm Hg.
pH 7.4.
HCO3 16 mEq/L.
PaCO2 58 mm Hg.
The Correct Answer is D
Choice A rationale:
A PaO2 value of 86 mm Hg is within the normal range (80-100 mm Hg) and does not indicate respiratory acidosis. PaO2 measures the partial pressure of oxygen in arterial blood.
Choice B rationale:
A pH of 7.4 is within the normal range (7.35-7.45) and does not indicate respiratory acidosis. The pH reflects the acidity or alkalinity of the blood.
Choice C rationale:
An HCO3 (bicarbonate) level of 16 mEq/L is within the normal range (22-28 mEq/L) and does not indicate respiratory acidosis. HCO3 is a measure of the metabolic component of the body's acid-base balance.
Choice D rationale:
This is the correct choice. A PaCO2 value of 58 mm Hg is elevated and indicates respiratory acidosis. PaCO2 measures the partial pressure of carbon dioxide in arterial blood, and an elevated value suggests the presence of excess carbon dioxide, leading to acidosis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale:
An elevated WBC count (11,000/mm²) in a client starting treatment for MRSA infection may indicate an inflammatory response, but it is expected in this scenario, and the priority is not as high as other critical lab values.
Choice B rationale:
A serum pH of 7.25 indicates acidosis, which is a potentially life-threatening condition. In type 1 diabetes mellitus, diabetic ketoacidosis (DKA) is a common complication that can lead to metabolic acidosis. This lab result is a priority as it requires immediate attention.
Choice C rationale:
Hematocrit of 26% in a client with sickle cell disease might be low, but it is not the priority over the critically abnormal lab value of serum pH in option B.
Choice D rationale:
A urine specific gravity of 1.032 in a client diagnosed with dehydration is elevated, indicating concentrated urine due to dehydration. While dehydration is concerning, it is not as high-priority as the potentially life-threatening acidosis in option B.
Correct Answer is B
Explanation
Choice A rationale:
Increasing the intake of dairy products is not recommended for a client with irritable bowel syndrome (IBS) as dairy can exacerbate symptoms in some individuals, particularly if they are lactose intolerant.
Choice B rationale:
Drinking ten glasses of water each day is a helpful recommendation for clients with IBS. Staying hydrated can aid in digestion and help alleviate symptoms like constipation.
Choice C rationale:
Decreasing daily fiber intake to 20 grams is not advisable for IBS management. Adequate fiber intake is essential for maintaining bowel regularity and overall gut health. Instead, it is recommended to focus on soluble fiber and gradually increase fiber intake to avoid exacerbating symptoms.
Choice D rationale:
Encouraging the intake of clear carbonated fluids is not ideal for clients with IBS. Carbonated beverages can cause bloating and gas, potentially worsening symptoms in individuals with sensitive digestive systems. It is better to recommend non-carbonated, non-caffeinated fluids for hydration.
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