You are assigned to infuse 300 mL of a solution over 2 hours with a drop factor of 15 gtt/mL. What is the flow rate in drops per minute?
- A. 25 gtt/min
- B. 37.5 gtt/min
- C. 45 gtt/min
- D. 75 gtt/min
Correct Answer: B
Rationale: Flow rate = (300 mL 15 gtt/mL) ÷ (2 60) = 4,500 ÷ 120 = 37.5 gtt/min, exactly matching option B.
You may also like to solve these questions
Your patient calls for an appointment before going on vacation. Which medication should you ensure he has an adequate supply of before leaving to avoid life-threatening complications?
- A. Carvedilol
- B. Donepezil
- C. Bethanechol
- D. Tacrine
Correct Answer: A
Rationale: Abrupt carvedilol withdrawal can cause life-threatening rebound hypertension or ischemia.
A nurse is working as a member of a research team involved in exploring the unique response to drugs each individual displays based on genetic make-up. What is this area of study called?
- A. Pharmacotherapeutics
- B. Pharmacodynamics
- C. Pharmacoeconomics
- D. Pharmacogenomics
Correct Answer: D
Rationale: Pharmacogenomics is the area of study that includes mapping of the human genome. In the future, medical care and drug regimens may be personally designed based on a patients unique genetic make-up. Pharmacotherapeutics is the branch of pharmacology that deals with the uses of drugs to treat, prevent, and diagnose disease. Pharmacodynamics involves how a drug affects the body. Pharmacoeconomics includes the costs involved in drug therapy.
In an acute attack of migraine, the drug of choice is
- A. Ergotamine tartrate
- B. Methysergide
- C. Propranolol
- D. Caffeine
Correct Answer: A
Rationale: Ergotamine tartrate is the drug of choice for acute migraine.
The nurse is assessing a diabetic patient who has presented at the clinic reporting several hypoglycemic episodes during the past 3 weeks. The nurse questions the patient about the use of herbal or alternative therapies, suspecting what herbal remedy could cause the hypoglycemic episodes?
- A. St. John's wort
- B. Kava
- C. Fish oil
- D. Ginseng
Correct Answer: D
Rationale: Ginseng is known to decrease blood sugar levels. If the patient used this in combination with his or her oral antidiabetic agent, diet, and exercise, his or her blood sugar could drop below therapeutic levels. St. John's wort interacts with many drugs, but not with antidiabetic agents. Kava is associated with liver toxicity. Fish oil has been associated with decreased coronary artery disease.
The nurse is teaching a nursing student about the antifungal drug amphotericin B. Which statement by the student indicates a need for further teaching?
- A. Amphotericin B may be given intravenously or by mouth
- B. Patients who take this drug should have potassium and magnesium levels assessed
- C. Patients with renal disease should not take amphotericin B
- D. This drug is used for severe systemic infections
Correct Answer: A
Rationale: Amphotericin B is IV-only due to poor oral absorption; electrolyte monitoring and systemic use are correct. Amphotericin B is not absorbed from the gastrointestinal tract, so is not given by mouth.