NR 565 Exam 3: Advanced Pharmacology Fundamentals V2
Updated and Latest Questions and Correct Answers with
Rationale
1. Which of the following is the primary mechanism of action for Metformin in the
treatment of Type 2 Diabetes?
A. Stimulating the pancreas to secrete more insulin
B. Slowing the absorption of carbohydrates in the small intestine
C. Decreasing hepatic glucose production and improving insulin sensitivity
D. Increasing glucose excretion through the renal system
Ans: C
Rationale: Metformin works primarily by decreasing hepatic glucose production and improving insulin
sensitivity in peripheral tissues. It is considered the first-line therapy for Type 2 Diabetes due to its
efficacy and safety profile. Unlike sulfonylureas, it does not typically cause hypoglycemia when used as
monotherapy. Patients are often started on a low dose to minimize gastrointestinal side effects such as
nausea or diarrhea. A rare but serious complication associated with this drug is the development of lactic
acidosis. It is important to monitor the patient’s estimated glomerular filtration rate regularly while on
this medication.
,2. A patient taking Levothyroxine for hypothyroidism should be instructed to take the
medication at what time?
A. On an empty stomach, 30 to 60 minutes before breakfast
B. Immediately after a large breakfast
C. In the evening with a high-calcium snack
D. Only when symptoms of fatigue are present
Ans: A
Rationale: Levothyroxine should be taken on an empty stomach to ensure optimal absorption in the
gastrointestinal tract. Consistency is vital for maintaining stable thyroid hormone levels within the
therapeutic range. Patients are advised to wait at least 30 to 60 minutes before consuming food or other
medications. Certain substances like calcium, iron, and fiber can significantly interfere with the
absorption of this drug. Education should include the fact that it may take several weeks to see a full
clinical effect. Monitoring of TSH levels is the standard method for adjusting the dosage for each
individual patient.
,3. What is the black box warning associated with the use of Thiazolidinediones like
Pioglitazone?
A. Risk of heart failure due to fluid retention
B. Risk of acute pancreatitis
C. Increased risk of lactic acidosis
D. Severe hypersensitivity reactions
Ans: A
Rationale: Thiazolidinediones like Pioglitazone carry a black box warning regarding the potential to
cause or exacerbate congestive heart failure. These medications cause fluid retention, which can lead to
rapid weight gain and edema in susceptible patients. Providers should avoid prescribing these agents to
patients with New York Heart Association Class III or IV heart failure. It is necessary to monitor for signs
like shortness of breath and peripheral swelling during the course of treatment. Besides heart failure,
there are concerns regarding an increased risk of bladder cancer with long-term use. Liver function
should also be assessed periodically to ensure the safety of the patient during therapy.
, 4. Which medication is preferred for the treatment of hyperthyroidism during the first
trimester of pregnancy?
A. Propylthiouracil (PTU)
B. Methimazole
C. Radioactive Iodine
D. Levothyroxine
Ans: A
Rationale: Propylthiouracil is the preferred antithyroid drug during the first trimester of pregnancy to
avoid fetal malformations. Methimazole is associated with specific birth defects like aplasia cutis when
used early in gestation. After the first trimester, the provider may switch the patient to Methimazole to
reduce the risk of maternal liver toxicity. PTU inhibits the synthesis of thyroid hormones and prevents
the conversion of T4 to T3 in the periphery. Close monitoring of thyroid function tests is required
throughout the pregnancy to maintain a mildly hyperthyroid state. Educating the patient on the signs of
liver failure is a critical component of nursing care while on PTU.
5. Which insulin has the fastest onset of action for controlling postprandial glucose spikes?
A. Insulin Glargine
B. Insulin Lispro
C. Insulin Detemir
D. NPH Insulin
Ans: B
Updated and Latest Questions and Correct Answers with
Rationale
1. Which of the following is the primary mechanism of action for Metformin in the
treatment of Type 2 Diabetes?
A. Stimulating the pancreas to secrete more insulin
B. Slowing the absorption of carbohydrates in the small intestine
C. Decreasing hepatic glucose production and improving insulin sensitivity
D. Increasing glucose excretion through the renal system
Ans: C
Rationale: Metformin works primarily by decreasing hepatic glucose production and improving insulin
sensitivity in peripheral tissues. It is considered the first-line therapy for Type 2 Diabetes due to its
efficacy and safety profile. Unlike sulfonylureas, it does not typically cause hypoglycemia when used as
monotherapy. Patients are often started on a low dose to minimize gastrointestinal side effects such as
nausea or diarrhea. A rare but serious complication associated with this drug is the development of lactic
acidosis. It is important to monitor the patient’s estimated glomerular filtration rate regularly while on
this medication.
,2. A patient taking Levothyroxine for hypothyroidism should be instructed to take the
medication at what time?
A. On an empty stomach, 30 to 60 minutes before breakfast
B. Immediately after a large breakfast
C. In the evening with a high-calcium snack
D. Only when symptoms of fatigue are present
Ans: A
Rationale: Levothyroxine should be taken on an empty stomach to ensure optimal absorption in the
gastrointestinal tract. Consistency is vital for maintaining stable thyroid hormone levels within the
therapeutic range. Patients are advised to wait at least 30 to 60 minutes before consuming food or other
medications. Certain substances like calcium, iron, and fiber can significantly interfere with the
absorption of this drug. Education should include the fact that it may take several weeks to see a full
clinical effect. Monitoring of TSH levels is the standard method for adjusting the dosage for each
individual patient.
,3. What is the black box warning associated with the use of Thiazolidinediones like
Pioglitazone?
A. Risk of heart failure due to fluid retention
B. Risk of acute pancreatitis
C. Increased risk of lactic acidosis
D. Severe hypersensitivity reactions
Ans: A
Rationale: Thiazolidinediones like Pioglitazone carry a black box warning regarding the potential to
cause or exacerbate congestive heart failure. These medications cause fluid retention, which can lead to
rapid weight gain and edema in susceptible patients. Providers should avoid prescribing these agents to
patients with New York Heart Association Class III or IV heart failure. It is necessary to monitor for signs
like shortness of breath and peripheral swelling during the course of treatment. Besides heart failure,
there are concerns regarding an increased risk of bladder cancer with long-term use. Liver function
should also be assessed periodically to ensure the safety of the patient during therapy.
, 4. Which medication is preferred for the treatment of hyperthyroidism during the first
trimester of pregnancy?
A. Propylthiouracil (PTU)
B. Methimazole
C. Radioactive Iodine
D. Levothyroxine
Ans: A
Rationale: Propylthiouracil is the preferred antithyroid drug during the first trimester of pregnancy to
avoid fetal malformations. Methimazole is associated with specific birth defects like aplasia cutis when
used early in gestation. After the first trimester, the provider may switch the patient to Methimazole to
reduce the risk of maternal liver toxicity. PTU inhibits the synthesis of thyroid hormones and prevents
the conversion of T4 to T3 in the periphery. Close monitoring of thyroid function tests is required
throughout the pregnancy to maintain a mildly hyperthyroid state. Educating the patient on the signs of
liver failure is a critical component of nursing care while on PTU.
5. Which insulin has the fastest onset of action for controlling postprandial glucose spikes?
A. Insulin Glargine
B. Insulin Lispro
C. Insulin Detemir
D. NPH Insulin
Ans: B
