ATI LPN
ATI LPN Pharmacology Exam Questions
Extract:
Question 1 of 5
Which drug groups do not inhibit clot formation? (SELECT ALL THAT APPLY)
Correct Answer: B,C,D,E
Rationale: B: Antihypertensives lower blood pressure, not clotting. C: Antibiotics target bacteria, not clots. D: Antipyretics reduce fever, not clotting. E: Antiemetics prevent nausea, not clotting. A is incorrect as anticoagulants inhibit clot formation.
Question 2 of 5
A patient was prescribed heparin sodium 18 units/kg/h; titrate according to the weight-based heparin protocol. The patient's weight is 123 pounds. Heparin 25,000 units/250 mL (100 units/mL) is available. Calculate the flow rate in mL/h (Round to the nearest tenths)
Correct Answer: A
Rationale: Weight = 123 lb × 0.453592 = 55.79 kg. Dose = 18 units/kg/hr × 55.79 kg = 1004.22 units/hr. Flow rate = 1004.22 / 100 = 10.04 mL/hr, rounded to 10.0 mL/hr.
Question 3 of 5
Low-density lipoproteins (LDLs) are the so-called 'bad' lipoproteins. Which statement best reflects why high levels of LDL are considered unhealthy?
Correct Answer: B
Rationale: High LDL contributes to atherosclerosis, increasing heart disease risk.
Question 4 of 5
A nurse is preparing to administer nitroglycerine 15 mcg/min by continuous IV infusion. Available is nitroglycerin 25 mg in 250 mL of dextrose 5% in water (D5W). The nurse should set the IV pump to deliver how many mL/hr? (Round to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.
Correct Answer: A
Rationale: Dose = 15 mcg/min × 60 = 900 mcg/hr. Concentration = 25 mg / 250 mL = 100 mcg/mL. Flow rate = 900 / 100 = 9 mL/hr.
Question 5 of 5
A client who is taking digoxin asks the nurse if they can take an antacid for heartburn. What is the nurse's best response?
Correct Answer: C
Rationale: Antacids reduce digoxin absorption; spacing by 2 hours prevents interaction.