The nurse suspects which cause of increased bubbling in the water seal chamber of a patient's chest drainage unit?
The patient has a pleural friction rub.
The patient has an infection at the drainage site.
The patient has a bronchopleural leak.
The patient has complete lung re-expansion.
The Correct Answer is C
A. A pleural friction rub occurs when the pleural surfaces rub against each other, usually due to inflammation, but it does not directly cause increased bubbling in the water seal chamber of a chest drainage unit.
B. An infection at the drainage site could lead to localized symptoms like redness or discharge, but it does not directly cause increased bubbling in the water seal chamber.
C. A bronchopleural leak is the most likely cause of increased bubbling in the water seal chamber. This occurs when there is an air leak between the lungs and pleural space, causing continuous air to enter the chest drainage system.
D. Complete lung re-expansion would not typically cause bubbling in the water seal chamber. Once the lung is fully re-expanded, bubbling should stop.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. HCO3 (bicarbonate) levels above 26 mEq/L indicate alkalosis, not acidosis. In metabolic acidosis, the HCO3 levels would be low as the body attempts to neutralize excess acid.
B. In metabolic acidosis, the pH is expected to be below 7.35 because metabolic acidosis indicates an accumulation of acid or loss of bicarbonate, which lowers the blood pH.
C. PaO2 (partial pressure of oxygen) below 70 mm Hg typically indicates hypoxemia, not necessarily metabolic acidosis. The primary concern with metabolic acidosis is the balance of acid-base status, not oxygenation.
D. PaCO2 above 45 mm Hg would suggest respiratory acidosis rather than metabolic acidosis. In metabolic acidosis, the body compensates by hyperventilating to blow off CO2 and raise the pH, resulting in a normal or low PaCO2.
Correct Answer is B
Explanation
A. Cheyne-Stokes breathing is characterized by periods of deep breathing followed by apnea and is often associated with conditions like heart failure or brain injury, not diabetic ketoacidosis (DKA).
B. Acetone odor to breath is a hallmark sign of diabetic ketoacidosis. The body breaks down fats for energy, producing ketones, which are released in the breath, giving it a fruity or acetone-like odor.
C. A blood glucose level below 40 mg/dL would indicate hypoglycemia, not DKA. In DKA, blood glucose levels are typically elevated (above 250 mg/dL).
D. Malignant hypertension refers to extremely high blood pressure with organ damage, and is not directly related to diabetic ketoacidosis.
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