A client with chronic lung disease is prescribed 40% oxygen via face mask. Which finding indicates to the nurse that the client is experiencing oxygen toxicity? Select all that apply.
Pink frothy sputum
Substernal discomfort
Nail clubbing
Restlessness
Cyanosis at nail beds
Correct Answer : A,B,D
Choice A reason: Pink frothy sputum is a classic sign of pulmonary edema, which can occur as a result of oxygen toxicity. When the alveoli in the lungs fill with fluid, it can lead to this type of sputum. This is a critical indicator that the client is experiencing severe respiratory distress and requires immediate medical attention.
Choice B reason: Substernal discomfort or chest pain is another symptom of oxygen toxicity. This discomfort arises due to the irritation and inflammation of the lung tissues caused by high levels of oxygen. It is essential to monitor and address this symptom promptly to prevent further complications.
Choice C reason: Nail clubbing is typically associated with chronic hypoxia and long-term lung diseases, but it is not an acute indicator of oxygen toxicity. Therefore, it is not relevant in this context.
Choice D reason: Restlessness is a common early sign of hypoxia and can also indicate oxygen toxicity. When the brain does not receive adequate oxygen, it can lead to symptoms such as restlessness, confusion, and agitation. This symptom should be taken seriously and addressed immediately.
Choice E reason: Cyanosis at the nail beds indicates a lack of oxygen in the blood, but it is not specific to oxygen toxicity. It can occur in various conditions where there is inadequate oxygenation, such as chronic obstructive pulmonary disease (COPD) or heart failure.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A: Metformin
Reason: Metformin is known to interact with contrast material, particularly iodinated contrast media, and can increase the risk of acute kidney injury (AKI). This interaction can lead to a condition known as contrast-induced nephropathy (CIN) or contrast-induced acute kidney injury (CI-AKI). Metformin is primarily excreted by the kidneys, and impaired renal function can lead to its accumulation, increasing the risk of lactic acidosis, a rare but serious complication. Therefore, it is generally recommended to withhold metformin before and after the administration of contrast media until renal function is confirmed to be normal.

Choice B: Carvedilol
Reason: Carvedilol is a beta-blocker used to treat high blood pressure and heart failure. It does not have a known interaction with contrast media that would increase the risk of acute kidney injury. Carvedilol primarily affects the cardiovascular system and does not significantly impact renal function or interact with contrast agents.
Choice C: Nitroglycerin
Reason: Nitroglycerin is used to treat angina and other heart conditions by dilating blood vessels. It does not interact with contrast media in a way that would increase the risk of acute kidney injury. Nitroglycerin’s primary effects are on the cardiovascular system, and it does not have nephrotoxic properties.
Choice D: Atorvastatin
Reason: Atorvastatin is a statin used to lower cholesterol levels. While it can have effects on liver enzymes and muscle tissue, it does not interact with contrast media to increase the risk of acute kidney injury. Atorvastatin is metabolized by the liver and does not significantly impact renal function.
Correct Answer is D
Explanation
Choice A Reason:
A pulse of 86 beats per minute is within the normal range for adults (60-100 beats per minute) and does not typically indicate a postoperative complication. While it is important to monitor vital signs, this pulse rate alone is not concerning unless accompanied by other abnormal findings.
Choice B Reason:
Hypoactive bowel sounds in all four quadrants can occur after surgery due to the effects of anesthesia and the surgical procedure itself. While it is important to monitor bowel sounds, hypoactivity is not immediately concerning unless it persists or is accompanied by other symptoms such as abdominal pain or distention. Therefore, this finding alone does not indicate an evolving complication.
Choice C Reason:
A blood pressure of 110/70 mm Hg is within the normal range for adults and does not typically indicate a postoperative complication. Blood pressure should be monitored regularly, but this reading alone is not concerning unless there are significant changes or other abnormal findings.
Choice D Reason:
Increasing restlessness is a concerning sign in the immediate postoperative period. It can indicate several potential complications, including pain, hypoxia, or the onset of delirium. Restlessness may also be an early sign of shock or other serious conditions that require prompt intervention. Therefore, this symptom warrants further assessment and immediate attention to determine the underlying cause and provide appropriate treatment.
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