ATI RN
ATI Pharmacology Practice B Questions
Question 1 of 5
A child is admitted with a serious infection. After two days of antibiotics, he is severely neutropenic. The physician orders granulocyte transfusions for the next four days. The mother asks the nurse why? The nurse responds:
Correct Answer: D
Rationale: Granulocyte transfusions are used to temporarily increase the white blood cell count in severely neutropenic patients, particularly those with life-threatening infections. These transfusions provide functional granulocytes to help fight the infection while the patient's bone marrow recovers and begins producing its own white blood cells. This explanation is accurate and reassures the mother that the treatment is aimed at supporting the child's immune system during a critical period.
Question 2 of 5
The drug that will most likely be used for treatment of erectile dysfunction (ED) is
Correct Answer: D
Rationale: Sildenafil (Viagra), a phosphodiesterase-5 inhibitor, enhances penile blood flow by increasing cyclic GMP, directly treating erectile dysfunction (ED) and is the standard first-line therapy. Leuprolide, a GnRH agonist, suppresses testosterone for prostate cancer, potentially worsening ED. Finasteride, for benign prostatic hyperplasia (BPH), reduces prostate size but may cause ED as a side effect, not treat it. Tamsulosin, an alpha-blocker for BPH, improves urinary flow but isn't indicated for ED and can lower blood pressure. Sildenafil's targeted action on vascular mechanisms in ED distinguishes it, offering rapid efficacy and a well-established safety profile for this condition.
Question 3 of 5
The health care provider is planning to discontinue a client's beta blocker. What instruction should the nurse give the client regarding the beta blocker?
Correct Answer: C
Rationale: The correct instruction for the nurse to give the client regarding discontinuing a beta blocker is that it should NOT be abruptly stopped; the dose should be tapered down. Suddenly stopping a beta blocker can lead to rebound hypertension, angina, and even heart attack in some cases. Tapering down the dose helps the body adjust gradually and reduces the risk of adverse effects associated with abrupt discontinuation. It is important for the client to follow the healthcare provider's guidance on how to safely decrease the dose of the beta blocker.
Question 4 of 5
A patient calls the clinic office saying that the cholestyramine (Questran) powder he started yesterday clumps and sticks to the glass when he tries to mix it. The nurse will suggest what method for mixing this medication for administration?
Correct Answer: C
Rationale: Cholestyramine (Questran) is a bile acid sequestrant used to lower cholesterol levels in the blood. To prevent clumping and sticking to the glass when mixing the powder, the nurse will suggest mixing the powder with food or fruit, or at least 4 to 6 ounces of fluid. This method helps to evenly disperse the powder and prevent clumping, making it easier for the patient to consume the medication. Mixing the powder with a carbonated soda drink (choice A) may not be suitable as the effervescence of the soda could affect the medication's stability. Adding the powder to any liquid and stirring vigorously (choice B) may not dissolve the powder effectively. Taking the powder dry on a spoon followed by a glass of water (choice E) may be difficult for the patient to swallow and may not distribute the medication evenly. Mixing with food or fluid provides a more palatable and effective method for administering Questr
Question 5 of 5
A 53-year-old man with chronic neuropathic back pain and depression is managed with amitriptyline. He has recently complained of urinary frequency and was given a prescription for Ditropan. He now complains of acute abdominal pain and is unable to pass flatus or bowel movement. What is the most likely explanation of this finding?
Correct Answer: C
Rationale: Amitriptyline and Ditropan (oxybutynin), both anticholinergics, risk paralytic ileus , stopping GI motility, causing pain and obstruction. Hepatitis , pancreatitis , overdose , and normalcy (E) don't fit. Combined anticholinergic effects explain this acute issue.