ATI RN
Pharmacology Final ATI Quizlet Questions
Question 1 of 5
What is the reaction of the body to high threshold mechanoreceptor?
Correct Answer: D
Rationale: High threshold mechanoreceptors are responsible for sensing mechanical stimuli such as pressure and touch. When these receptors are activated, one of the body's reactions is to produce analgesia, which refers to the relief of pain or a decreased sensitivity to painful stimuli. This analgesic effect is a protective mechanism that helps reduce the perception of pain in response to potentially harmful mechanical stimuli. Therefore, the reaction of the body to high threshold mechanoreceptors is often associated with analgesia rather than tolerance, withdrawal reflex, inflammation, or suppuration.
Question 2 of 5
What assessment finding indicates to the nurse that timolol (Timoptic) has been effective?
Correct Answer: B
Rationale: Timolol and carteolol are available in an ophthalmic form of the drug for reduction of intraocular pressure in patients with open-angle glaucoma. A decrease in intraocular pressure would indicate it has been effective. Timolol can also be used to treat hypertension but an increase in blood pressure would indicate the drug was not effective. Reduced pulse rate and reduced angina would not be related to this drug, especially if it was given in ophthalmic form when very little of the drug is absorbed systemically.
Question 3 of 5
The nurse is reviewing the care plan with a patient using enteral nutrition (EN). Which interventions by the nurse are appropriate for this strategy? (Select all that apply.)
Correct Answer: A
Rationale: Checking gastric residuals (A) ensures proper gastric emptying and reduces aspiration risk. Elevating the bed (B) prevents reflux and aspiration. Reporting absent bowel sounds (D) is critical, as EN is contraindicated in ileus. Feeding bags and tubing should be changed every 24 hours, not 3 to 4 days (C).
Question 4 of 5
A nurse is analyzing the laboratory studies on a client receiving dantrolene sodium (Dantrium). Which of the following laboratory tests would identify an adverse effect associated with the use of the medication?
Correct Answer: C
Rationale: Dantrolene sodium is associated with hepatotoxicity, making liver function tests essential for monitoring adverse effects. Elevated liver enzymes (ALT, AST) may indicate liver damage, requiring discontinuation of the drug. Blood urea nitrogen and creatinine are used to assess kidney function, while triglyceride levels are unrelated to dantrolene's primary adverse effects. Regular monitoring of liver function is critical to ensure patient safety during treatment.
Question 5 of 5
A client with juvenile pilocytic astrocytoma who is receiving dexamethasone (Decadron) 4mg/IV every 6 hours to relieve symptoms of right arm weakness and headache. Which of the following assessments will concern the nurse most?
Correct Answer: C
Rationale: Dexamethasone (Decadron) is a corticosteroid used to reduce inflammation and edema in brain tumors. A client no longer recognizing family members indicates a potential worsening of neurological status, such as increased intracranial pressure or tumor progression, which is a critical concern. Elevated blood glucose and weight gain are common side effects of steroids but are less urgent. Persistent headaches are expected but less concerning than cognitive changes. Therefore, cognitive decline is the most alarming assessment.