ATI RN
ATI Pharmacology Study Guide Questions
Question 1 of 5
What is the therapeutic classification of Metformin?
Correct Answer: D
Rationale: Metformin belongs to the therapeutic classification of antidiabetic agents. It is commonly used to treat type 2 diabetes by helping to control blood sugar levels. Metformin works by decreasing glucose production in the liver and improving insulin sensitivity in the body's tissues. This helps the body use insulin more effectively, leading to better blood sugar control.
Question 2 of 5
Which of the following is NOT a pharmacologic property of histamine:
Correct Answer: D
Rationale: Histamine is a biogenic amine that acts as a neurotransmitter in the body. It is known to have several pharmacologic properties, such as the ability to reduce gastric secretion (Choice A), relaxation of vascular smooth muscle (Choice B), contraction of bronchi (Choice C), and production of pain and itch (Choice E). However, histamine does not have a direct effect on free nerve endings. Its effects on pain and itch are mediated through activation of specific histamine receptors on nerve cells and not through direct action on free nerve endings.
Question 3 of 5
The nurse is caring for a postoperative patient. The nurse will anticipate administering which medication to this patient to help prevent thrombus formation caused by slow venous blood flow?
Correct Answer: D
Rationale: Low-molecular-weight heparin (LMWH) is commonly administered to postoperative patients to help prevent thrombus formation caused by slow venous blood flow. LMWH works by inhibiting the activity of certain clotting factors, ultimately preventing the formation of blood clots. As a result, it is often used in the prevention and treatment of conditions such as deep vein thrombosis (DVT) and pulmonary embolism (PE) in surgical patients. LMWH is preferred over traditional heparin due to its longer half-life, allowing for once or twice daily dosing, and reduced risk of heparin-induced thrombocytopenia (HIT).
Question 4 of 5
A nurse is working with a patient who is taking an adrenergic blocking agent. While assessing the patient’s medication history, the nurse discovers that the patient takes several alternative therapies. What herb is the nurse concerned may interact with the adrenergic blocking agent and affect the patient’s blood glucose level?
Correct Answer: C
Rationale: Di huang is an alternative therapy that can lower blood glucose when used in combination with adrenergic blocking agents. Ginseng increases antihypertensive effects; nightshade slows the heart rate; and saw palmetto increases the risk of urinary tract complications when used in combination with adrenergic blocking agents. The nurse should educate the patient about potential interactions and monitor blood glucose levels closely.
Question 5 of 5
A patient is receiving fluid replacement. The nurse's health teaching with this patient includes which suggestions? (Select all that apply.)
Correct Answer: A
Rationale: Monitoring weight daily (A) helps assess fluid balance, as sudden changes may indicate fluid retention or loss. Thirst (B) is an early sign of mild dehydration. Monitoring intake and output (C) is essential to evaluate fluid status. Avoiding calcium and chloride supplements (D) is not relevant to fluid replacement. Reviewing electrolyte labs (E) is important but not part of routine health teaching for fluid replacement.