Therapeutic Monitoring and Lab Correlations

1. Mr. Raymond, 45 years old, has been receiving lithium carbonate for bipolar disorder. His most recent lab result shows a serum lithium level of 2.1 mmol/L. He reports tremors, vomiting, and confusion. What should the nurse do first? *
2. A patient who has been receiving intravenous gentamicin for several days reports having had a headache for 2 days. The lab reports a high trough level. *
3. A patient is on warfarin (Coumadin) therapy for atrial fibrillation. The latest INR result is 5.5 (Normal: 2-3). What should the nurse anticipate? *
4. Mr. Benoît is taking phenytoin (Dilantin) for seizure control. His serum phenytoin level is 8 mcg/mL (Normal: 1020 mcg/mL). What should the nurse anticipate? *
5. Which parameter will the LPN assess in the patient with pneumonia who is about to receive vancomycin to ensure safe administration of the drug? *
6. A patient receiving digoxin shows a serum digoxin level of 2.8 ng/mL. The nurse notes bradycardia and visual halos. What is the most appropriate intervention? *
7. A patient is receiving theophylline for asthma. The theophylline level is 25 mcg/mL. What sign should the nurse monitor for? *
8. The client experiences extrapyramidal symptoms (EPS) during therapy with phenothiazines. The nurse expects which of the following drugs to be prescribed? *
9. Mr. Lapierre is on valproic acid for epilepsy. The nurse reviews his labs: AST and ALT are elevated. What should the nurse do? *
10. A patient receiving methotrexate for rheumatoid arthritis has a WBC count of 2.0 x10⁹/L (Normal: 4.5–11.0 x 10⁹/L). What is the most appropriate action? *