The therapeutic blood level for theophylline (Xanthines) is
a. 5 to 10 mg/dL.
b. 10 to 20 mg/dL.
c. 20 to 30 mg/dL.
d. 35 to 45 mg/dL.
B
Therapeutic blood level for theophylline is 10 to 20 mg/dL.
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Mr. Klein has oat cell carcinoma of the lung. He is currently admitted with acute mental status changes and a sodium level of 118 mEq/L. His diagnosis most likely is
A) hypothyroidism. B) Graves' disease. C) SIADH. D) diabetes insipidus.
The nurse is caring for a client with a dysrhythmia. While assessing the data in the history of the chart, the nurse anticipates the cause of the dysrhythmia to be which of the following?
A) Peripheral vascular disease B) Ischemic heart disease C) Aortic stenosis D) Atherosclerotic heart disease
A patient presents with polymorphous lesions consisting of small, red papules and vesicles, with a few eroded and crusted lesions. Your differential diagnosis should include all except which of the following?
A. Herpes simplex B. Varicella C. Bacterial folliculitis D. Contactdermatitis
The client has an indwelling urinary catheter. Which does the nurse implement to obtain a urine specimen from this client?
1. Apply sterile gloves for the procedure. 2. Insert small needle into drainage tubing. 3. Clamp the drainage tubing for 30 minutes. 4. Disconnect catheter and drain urine into cup.