NR565 | NR565 Advanced Pharmacology
Fundamentals Exam 3 v3 | Questions with Correct
Answers and Expert Explanation for Each Question
| Chamberlain
1. A patient with type 2 diabetes is prescribed Metformin. Which of the following is
the most important lab value to monitor periodically to prevent a life-threatening
complication?
A. Serum Potassium
B. Alanine Aminotransferase (ALT)
C. Glomerular Filtration Rate (GFR)
D. Serum Sodium
Correct Answer: C
Expert Explanation: Metformin is primarily excreted by the kidneys and can
accumulate in the setting of renal impairment. This accumulation increases the risk
of lactic acidosis, which is a rare but potentially fatal metabolic complication.
Providers should monitor the GFR and generally avoid metformin if the GFR falls
below 30 mL/min/1.73m².
2. Which insulin type provides a basal level of insulin and should not be mixed in the
same syringe with other insulins?
A. Insulin Lispro
,B. Regular Insulin
C. NPH Insulin
D. Insulin Glargine
Correct Answer: D
Expert Explanation: Insulin Glargine is a long-acting basal insulin that maintains a
steady state for approximately 24 hours. Because of its acidic pH, it cannot be mixed
with other insulins as this may cause precipitation and alter the absorption kinetics.
It is typically administered once daily at the same time to provide consistent
glycemic control.
3. A patient newly diagnosed with hypothyroidism is started on Levothyroxine. When
should the provider advise the patient to take this medication?
A. With a high-fiber breakfast
B. Immediately before going to sleep
C. With lunch to avoid GI upset
D. On an empty stomach, 30-60 minutes before breakfast
Correct Answer: D
Expert Explanation: Levothyroxine absorption is significantly reduced when taken
with food, certain minerals, or fiber. To ensure consistent absorption and
,therapeutic levels, it should be taken on an empty stomach in the morning. Patients
should wait at least 30 to 60 minutes before eating or taking other medications.
4. A nurse practitioner is treating a patient for hyperthyroidism with Methimazole.
What potential side effect requires immediate cessation of the drug and a blood count
check?
A. Weight gain
B. Constipation
C. Mild rash
D. Agranulocytosis
Correct Answer: D
Expert Explanation: Agranulocytosis is a rare but severe side effect of thionamides
like Methimazole characterized by a dangerously low white blood cell count.
Patients are instructed to report any fever or sore throat immediately as these are
early signs of infection. If agranulocytosis is confirmed, the drug must be
discontinued immediately and not restarted.
5. Which of the following instructions is critical for a patient who has been taking high-
dose Prednisone for several weeks?
A. Taper the dose gradually as directed by the provider
, B. Double the dose if you miss a day
C. Stop the medication immediately if you feel better
D. Take the medication only on an as-needed basis
Correct Answer: A
Expert Explanation: Exogenous corticosteroids suppress the hypothalamic-
pituitary-adrenal (HPA) axis, leading to decreased natural cortisol production.
Sudden withdrawal of the drug can lead to adrenal crisis, which is a medical
emergency. A gradual taper allows the adrenal glands to resume their normal
function and production of cortisol.
6. A patient with a history of a severe anaphylactic reaction to Penicillin requires
antibiotic therapy. Which class of antibiotics should be used with extreme caution or
avoided due to potential cross-reactivity?
A. Tetracyclines
B. Fluoroquinolones
C. Macrolides
D. Cephalosporins
Correct Answer: D
Fundamentals Exam 3 v3 | Questions with Correct
Answers and Expert Explanation for Each Question
| Chamberlain
1. A patient with type 2 diabetes is prescribed Metformin. Which of the following is
the most important lab value to monitor periodically to prevent a life-threatening
complication?
A. Serum Potassium
B. Alanine Aminotransferase (ALT)
C. Glomerular Filtration Rate (GFR)
D. Serum Sodium
Correct Answer: C
Expert Explanation: Metformin is primarily excreted by the kidneys and can
accumulate in the setting of renal impairment. This accumulation increases the risk
of lactic acidosis, which is a rare but potentially fatal metabolic complication.
Providers should monitor the GFR and generally avoid metformin if the GFR falls
below 30 mL/min/1.73m².
2. Which insulin type provides a basal level of insulin and should not be mixed in the
same syringe with other insulins?
A. Insulin Lispro
,B. Regular Insulin
C. NPH Insulin
D. Insulin Glargine
Correct Answer: D
Expert Explanation: Insulin Glargine is a long-acting basal insulin that maintains a
steady state for approximately 24 hours. Because of its acidic pH, it cannot be mixed
with other insulins as this may cause precipitation and alter the absorption kinetics.
It is typically administered once daily at the same time to provide consistent
glycemic control.
3. A patient newly diagnosed with hypothyroidism is started on Levothyroxine. When
should the provider advise the patient to take this medication?
A. With a high-fiber breakfast
B. Immediately before going to sleep
C. With lunch to avoid GI upset
D. On an empty stomach, 30-60 minutes before breakfast
Correct Answer: D
Expert Explanation: Levothyroxine absorption is significantly reduced when taken
with food, certain minerals, or fiber. To ensure consistent absorption and
,therapeutic levels, it should be taken on an empty stomach in the morning. Patients
should wait at least 30 to 60 minutes before eating or taking other medications.
4. A nurse practitioner is treating a patient for hyperthyroidism with Methimazole.
What potential side effect requires immediate cessation of the drug and a blood count
check?
A. Weight gain
B. Constipation
C. Mild rash
D. Agranulocytosis
Correct Answer: D
Expert Explanation: Agranulocytosis is a rare but severe side effect of thionamides
like Methimazole characterized by a dangerously low white blood cell count.
Patients are instructed to report any fever or sore throat immediately as these are
early signs of infection. If agranulocytosis is confirmed, the drug must be
discontinued immediately and not restarted.
5. Which of the following instructions is critical for a patient who has been taking high-
dose Prednisone for several weeks?
A. Taper the dose gradually as directed by the provider
, B. Double the dose if you miss a day
C. Stop the medication immediately if you feel better
D. Take the medication only on an as-needed basis
Correct Answer: A
Expert Explanation: Exogenous corticosteroids suppress the hypothalamic-
pituitary-adrenal (HPA) axis, leading to decreased natural cortisol production.
Sudden withdrawal of the drug can lead to adrenal crisis, which is a medical
emergency. A gradual taper allows the adrenal glands to resume their normal
function and production of cortisol.
6. A patient with a history of a severe anaphylactic reaction to Penicillin requires
antibiotic therapy. Which class of antibiotics should be used with extreme caution or
avoided due to potential cross-reactivity?
A. Tetracyclines
B. Fluoroquinolones
C. Macrolides
D. Cephalosporins
Correct Answer: D
