ATI LPN
Pharmacology and the Nursing Process 10th Edition Test Bank
Chapter 15 : Antiparkinson Drugs Questions
Question 1 of 5
A patient taking entacapone for the first time calls the clinic to report a dark discoloration of his urine. After listening to the patient, the nurse realizes that what is happening in this situation?
Correct Answer: A
Rationale: Entacapone commonly causes harmless dark discoloration of urine and sweat, which does not indicate an allergic reaction, interaction with tyramine-containing foods, or an excessive dose.
Question 2 of 5
While a patient is receiving drug therapy for Parkinson's disease, the nurse monitors for dyskinesia, which is manifested by which finding?
Correct Answer: B
Rationale: Dyskinesia, a common side effect of Parkinson's medications, manifests as difficulty in performing voluntary movements due to involuntary muscle activity. The other options describe different symptoms not typically associated with dyskinesia.
Question 3 of 5
When treating patients with medications for Parkinson's disease, the nurse knows that the wearing-off phenomenon occurs for which reason?
Correct Answer: C
Rationale: The wearing-off phenomenon occurs as antiparkinson medications, particularly levodopa, lose effectiveness over time due to disease progression, despite maximal dosing.
Tolerance, rapid response swings, or liver metabolism issues are not the primary causes.
Question 4 of 5
When assessing the medication history of a patient with a new diagnosis of Parkinson's disease, which conditions are contraindications for the patient who will be taking carbidopa-levodopa? (Select all that apply.)
Correct Answer: A,B,E
Rationale: Carbidopa-levodopa is contraindicated in angle-closure glaucoma, history of malignant melanoma (due to potential activation of melanoma), and concurrent MAOI use (due to risk of hypertensive crisis). Hypertension and benign prostatic hyperplasia are not absolute contraindications.
Question 5 of 5
The prescriber writes this order, 'Give amantadine 100 mg per PEG tube twice a day.' The medication is available in a liquid form with a concentration 50 mg/5 mL. Identify how many milliliters the nurse will give with each dose.
Correct Answer: 10 mL
Rationale:
To calculate: 50 mg/5 mL = 100 mg/x mL. Cross-multiply: (50 * x) = (5 * 100); 50x = 500; x = 500/50 = 10 mL per dose.