ATI LPN
ATI LPN Pharmacology Quiz Questions
Extract:
Question 1 of 5
A nurse is preparing to administer diazepam 3 mg IM. The amount available is diazepam for injection 5 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
Correct Answer: 0.6
Rationale:
To calculate the volume, use: Volume (mL) = Dose (mg) ÷ Concentration (mg/mL). Given a dose of 3 mg and concentration of 5 mg/mL, Volume = 3 ÷ 5 = 0.6 mL, rounded to the nearest tenth as instructed.
Question 2 of 5
Clients taking metformin (Glucophage) should be monitored for this rare but potentially fatal adverse effect:
Correct Answer: D
Rationale: Lactic acidosis is a rare but serious metformin complication, especially with renal impairment, due to drug accumulation. Respiratory acidosis, hyperlipidemia, and hypertension are not typical metformin side effects.
Question 3 of 5
Jennifer takes birth control pills. Recently she was diagnosed with a urinary tract infection and is taking ciprofloxacin (Cipro). To maximize the therapeutic effects of both types of drugs, what should the nurse tell Jennifer?
Correct Answer: C
Rationale: Ciprofloxacin may reduce birth control pill effectiveness, risking pregnancy. Completing the antibiotic therapy with a backup contraception method ensures infection treatment and pregnancy prevention. Changing drugs or abstaining is less practical.
Question 4 of 5
Your patient is allergic to penicillin. He may also have a cross-allergy to which class of antibiotics?
Correct Answer: D
Rationale: Cephalosporins are structurally and chemically related to penicillins, sharing a beta-lactam ring that can cause cross-allergy in some patients. The risk varies by cephalosporin generation and patient sensitivity, but caution is warranted. Aminoglycosides, sulfonamides, and macrolides have different structures and no significant cross-allergy with penicillins, making them safer alternatives for penicillin-allergic patients.
Question 5 of 5
By which routes can insulin be administered? (Select All that Apply.)
Correct Answer: A,D
Rationale: Insulin is commonly administered subcutaneously for routine management and intravenously in emergencies like diabetic ketoacidosis. Intradermal, oral, and topical routes are ineffective due to poor absorption or degradation.