ATI RN
ATI Pharmacology Study Guide Questions
Question 1 of 5
What is the expected outcome for Valproate?
Correct Answer: D
Rationale: Valproate is an anticonvulsant medication commonly used to treat seizure disorders such as epilepsy. It works by stabilizing electrical activity in the brain, which helps to reduce the occurrence of seizures. Therefore, the expected outcome of Valproate treatment is a decrease in seizure activity and an improvement in seizure control.
Question 2 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 3 of 5
Action of antiemetic drugs
Correct Answer: D
Rationale: Antiemetic drugs are medications used to prevent and treat nausea and vomiting. Therefore, the main action of antiemetic drugs is to prevent vomiting, making option E the correct answer. Antiemetic drugs work by reducing or blocking the signals to the vomiting center in the brain, thus helping to alleviate the symptoms of nausea and prevent vomiting.
Question 4 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 5 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).