A nurse is caring for a client prescribed warfarin. Which laboratory value should
the nurse monitor to evaluate the effectiveness of the therapy?
1. Platelet count
2. Prothrombin time (PT)/International Normalized Ratio (INR)
3. Activated partial thromboplastin time (aPTT)
4. Hemoglobin
Answer: 2
Rationale: The effectiveness of warfarin, an anticoagulant, is monitored using
PT/INR. INR is a standardized measure that ensures consistent results across
laboratories.
Question 2
A client is taking digoxin. The nurse should monitor for which adverse effect that
may indicate digoxin toxicity?
1. Hypotension
2. Hyperactivity
3. Visual disturbances, such as yellow halos
4. Dry mouth
Answer: 3
Rationale: Visual disturbances, such as yellow-green halos around lights, nausea,
and bradycardia, are common signs of digoxin toxicity.
Question 3
A nurse is administering furosemide to a client with heart failure. Which
electrolyte imbalance is the nurse most concerned about?
1. Hypernatremia
, 2. Hypokalemia
3. Hypercalcemia
4. Hypomagnesemia
Answer: 2
Rationale: Furosemide, a loop diuretic, causes potassium loss through increased
urination, leading to hypokalemia.
Question 4
A nurse is educating a client about taking albuterol. Which statement by the client
indicates effective teaching?
1. “I will take this medication every morning before breakfast.”
2. “I will use this medication to prevent asthma attacks.”
3. “I will use this medication when I feel short of breath.”
4. “I will not use this medication more than once a day.”
Answer: 3
Rationale: Albuterol is a short-acting beta-agonist used as a rescue inhaler for
acute bronchospasm.
Question 5
A nurse is preparing to administer insulin glargine. Which statement about this
insulin is correct?
1. It peaks in 2-4 hours.
2. It has a duration of 24 hours.
3. It should be mixed with regular insulin.
4. It should be administered 30 minutes before meals.
, Answer: 2
Rationale: Insulin glargine is a long-acting insulin with no significant peak and
provides 24-hour coverage. It should not be mixed with other insulins.
Question 6
Which of the following instructions should the nurse give to a client taking ferrous
sulfate?
1. Take the medication with milk.
2. Take the medication on an empty stomach.
3. Take the medication with antacids to reduce gastric upset.
4. Take the medication with tea or coffee.
Answer: 2
Rationale: Ferrous sulfate is best absorbed on an empty stomach, though it may
cause gastric upset. Taking it with milk or antacids reduces absorption.
Question 7
A nurse is teaching a client about a new prescription for nitroglycerin sublingual
tablets. Which statement by the client requires further teaching?
1. “I should store the tablets in a dark container.”
2. “I will take the medication at the first sign of chest pain.”
3. “I can take up to three doses, 5 minutes apart.”
4. “I can chew the tablet if I’m having severe chest pain.”
Answer: 4
Rationale: Sublingual tablets must dissolve under the tongue to be effective.
Chewing them negates their intended rapid absorption.
Question 8