The nurse receives a lab value indicating a theophylline level of 23 ug/ml for a client. What is the nurse's expected action?

Question

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Hold the client's morning dose of theophylline. Theophylline toxicity can occur with a serum level of 20 ug/ml or greater. Side effects from theophylline include nausea, vomiting, headache, irritability, and insomnia. Early signs of toxicity are nausea, tachycardia, and irritability; seizures and dysrhythmias occur at blood theophylline levels greater than 30 ug/ml.

The Nurse Receives a Lab Value Indicating a Theophylline Level