A nurse is assessing a client who has oxygen toxicity. Which of the following findings should the nurse expect?
Metallic taste in mouth
Facial flushing
Muscle twitching
Periorbital edema
The Correct Answer is C
A. Metallic taste in the mouth:
This is not a typical finding of oxygen toxicity. Metallic taste may be associated with other factors but is not a specific indicator of oxygen toxicity.
B. Facial flushing:
Facial flushing is not a typical finding in oxygen toxicity. It is more commonly associated with other conditions, such as certain allergic reactions or vasodilation.
C. Muscle twitching
Muscle twitching, also known as myoclonus, is a recognized symptom of central nervous system oxygen toxicity. High concentrations of oxygen, particularly at increased pressures, can cause neurotoxic effects leading to muscle twitching, dizziness, and even convulsions.
D. Periorbital edema:
Periorbital edema is not a common manifestation of oxygen toxicity. It is more commonly associated with conditions related to fluid balance or kidney function.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. PEEP decreases the peak respiratory pressures:
PEEP may increase peak respiratory pressures, especially during inspiration, but its primary purpose is to prevent alveolar collapse and improve oxygenation.
B. “PEEP increases the number of breaths the patient takes on his own.”:
PEEP does not increase the number of breaths the patient takes. It primarily affects the quality of ventilation by preventing alveolar collapse.
C. “PEEP augments the patient’s overall tidal volumes.”:
PEEP does not necessarily increase overall tidal volumes. It focuses on maintaining positive pressure at the end of expiration to prevent alveolar collapse.
D. “PEEP improves oxygenation by keeping alveoli open after exhalation.”
Positive end-expiratory pressure (PEEP) is used in mechanical ventilation to maintain positive pressure in the airways and alveoli at the end of the respiratory cycle (expiration). This helps prevent alveolar collapse and improves oxygenation by keeping the alveoli open, particularly in patients with conditions like acute respiratory distress syndrome (ARDS). PEEP is commonly used to increase functional residual capacity (FRC) and improve oxygenation.
Correct Answer is ["A","D"]
Explanation
A. Decreased lung sounds
A decrease in lung sounds could indicate a pneumothorax, which is a potential complication of thoracentesis. It requires prompt evaluation.
B. Heart rate 110/min and regular
A heart rate of 110/min is within a normal range, and regular rhythm is generally acceptable post-thoracentesis. It may be related to pain or anxiety but is not an immediate concern.
C. Oxygen saturation of 95%
An oxygen saturation of 95% is within an acceptable range. While maintaining adequate oxygenation is important, this finding does not suggest an immediate complication.
D. Subcutaneous emphysema
Subcutaneous emphysema involves the presence of air in the subcutaneous tissues and can indicate a communication between the pleural space and subcutaneous tissues. This requires immediate attention.
E. Trachea midline
The trachea being midline is a normal finding and does not indicate an immediate problem post-thoracentesis.
F. Puncture site dry
A dry puncture site is expected after a thoracentesis. This finding is normal and indicates appropriate wound care. It is included in the list to ensure recognition of normal post-procedure findings.
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