NUR 6011/NUR6011 Exam 4 V3 | Advance
Pharmacology Q&A with Rationale |
William Paterson University
1. Which lab value is most critical to monitor for a patient receiving Warfarin therapy?
A. International Normalized Ratio (INR)
B. Activated Partial Thromboplastin Time (aPTT)
C. Serum Potassium levels
D. Platelet count
Correct Answer: A
Expert Explanation: Warfarin therapy requires frequent monitoring of the INR to ensure
the patient remains within the therapeutic range, usually 2.0 to 3.0. While aPTT is used for
heparin, INR provides a standardized measure of the prothrombin time. Consistent
monitoring helps prevent both subtherapeutic dosing and life-threatening bleeding
complications.
2. A patient is prescribed Atorvastatin. What symptom should they be instructed to report
immediately?
A. Unexplained muscle pain or weakness
B. Mild headache
C. Occasional dry mouth
,D. Increased appetite
Correct Answer: A
Expert Explanation: Statins carry a risk of myopathy and potentially fatal rhabdomyolysis.
Unexplained muscle pain or weakness can be an early sign of muscle breakdown and
requires immediate clinical evaluation. Additionally, practitioners often monitor creatine
kinase levels if these symptoms occur to assess for muscle injury.
3. What is the primary mechanism of action for inhaled corticosteroids in asthma
management?
A. Rapid bronchodilation of smooth muscles
B. Suppression of airway inflammation
C. Inhibition of the cough reflex in the CNS
D. Thinning of pulmonary secretions
Correct Answer: B
Expert Explanation: Corticosteroids work by reducing the production and release of
inflammatory mediators like leukotrienes and prostaglandins. This reduction in
inflammation decreases airway hyper-responsiveness and mucus production over time.
Unlike albuterol, these medications are used for long-term control rather than acute relief.
4. When educating a patient on Metformin, which potential side effect is the most serious
and requires immediate attention?
A. Metallic taste in the mouth
, B. Lactic acidosis
C. Mild abdominal cramping
D. Weight loss
Correct Answer: B
Expert Explanation: Lactic acidosis is a rare but life-threatening complication associated
with Metformin use, particularly in patients with renal impairment. Symptoms can include
malaise, myalgia, respiratory distress, and somnolence. Patients should be advised to hold
the medication during periods of severe dehydration or before receiving IV contrast dye.
5. What is the recommended timing for taking Levothyroxine?
A. Right before bedtime with a snack
B. Immediately after a high-fiber dinner
C. 30 to 60 minutes before breakfast on an empty stomach
D. With the largest meal of the day
Correct Answer: C
Expert Explanation: Levothyroxine absorption is significantly reduced when taken with
food, minerals, or certain medications. Taking it on an empty stomach in the morning
ensures consistent absorption and therapeutic serum levels. Patients should wait at least
30 to 60 minutes before consuming any food or caffeinated beverages.
Pharmacology Q&A with Rationale |
William Paterson University
1. Which lab value is most critical to monitor for a patient receiving Warfarin therapy?
A. International Normalized Ratio (INR)
B. Activated Partial Thromboplastin Time (aPTT)
C. Serum Potassium levels
D. Platelet count
Correct Answer: A
Expert Explanation: Warfarin therapy requires frequent monitoring of the INR to ensure
the patient remains within the therapeutic range, usually 2.0 to 3.0. While aPTT is used for
heparin, INR provides a standardized measure of the prothrombin time. Consistent
monitoring helps prevent both subtherapeutic dosing and life-threatening bleeding
complications.
2. A patient is prescribed Atorvastatin. What symptom should they be instructed to report
immediately?
A. Unexplained muscle pain or weakness
B. Mild headache
C. Occasional dry mouth
,D. Increased appetite
Correct Answer: A
Expert Explanation: Statins carry a risk of myopathy and potentially fatal rhabdomyolysis.
Unexplained muscle pain or weakness can be an early sign of muscle breakdown and
requires immediate clinical evaluation. Additionally, practitioners often monitor creatine
kinase levels if these symptoms occur to assess for muscle injury.
3. What is the primary mechanism of action for inhaled corticosteroids in asthma
management?
A. Rapid bronchodilation of smooth muscles
B. Suppression of airway inflammation
C. Inhibition of the cough reflex in the CNS
D. Thinning of pulmonary secretions
Correct Answer: B
Expert Explanation: Corticosteroids work by reducing the production and release of
inflammatory mediators like leukotrienes and prostaglandins. This reduction in
inflammation decreases airway hyper-responsiveness and mucus production over time.
Unlike albuterol, these medications are used for long-term control rather than acute relief.
4. When educating a patient on Metformin, which potential side effect is the most serious
and requires immediate attention?
A. Metallic taste in the mouth
, B. Lactic acidosis
C. Mild abdominal cramping
D. Weight loss
Correct Answer: B
Expert Explanation: Lactic acidosis is a rare but life-threatening complication associated
with Metformin use, particularly in patients with renal impairment. Symptoms can include
malaise, myalgia, respiratory distress, and somnolence. Patients should be advised to hold
the medication during periods of severe dehydration or before receiving IV contrast dye.
5. What is the recommended timing for taking Levothyroxine?
A. Right before bedtime with a snack
B. Immediately after a high-fiber dinner
C. 30 to 60 minutes before breakfast on an empty stomach
D. With the largest meal of the day
Correct Answer: C
Expert Explanation: Levothyroxine absorption is significantly reduced when taken with
food, minerals, or certain medications. Taking it on an empty stomach in the morning
ensures consistent absorption and therapeutic serum levels. Patients should wait at least
30 to 60 minutes before consuming any food or caffeinated beverages.
