PHARMACOLOGY EXAM 3:
DRUGS
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,Question 1
propanolol, metoprolol
Correct Answer
beta blockers
Rationale:
Propanolol and metoprolol are both types of medications classified under the broader category of beta blockers, which is the primary
classification system used in pharmacology. This is because beta blockers are defined by their mechanism of action, which involves
blocking the beta receptors in the body, and both propanolol and metoprolol fit this definition, regardless of their specific uses or
effects.
Question 2
gold standard to treat HTN
Correct Answer
beta blockers
Rationale:
Beta blockers are considered a cornerstone in treating hypertension (HTN) because they effectively reduce cardiac output and
peripheral resistance, thereby lowering blood pressure, without significantly affecting potassium levels. This unique mechanism of
action makes beta blockers an ideal choice for HTN management, especially in patients with heart failure or those who cannot tolerate
diuretics or ACE inhibitors.
Question 3
What do beta blockers reduce in the BP equation?
Correct Answer
SV and HR
Rationale:
Beta blockers are a type of medication that reduce the force of the heart's contractions, thereby decreasing cardiac output (CO) and
subsequently systolic blood pressure (SBP). Since the mean arterial pressure (MAP) equation is MAP = CO x total peripheral resistance
(TPR), reducing CO or increasing TPR would decrease MAP, but since the question focuses on the BP equation, which is typically given
as BP = CO x TPR or BP = 80(1.34 x CO x TPR), the correct reduction related to beta blockers directly impacts the CO term, resulting
in the correct answer being "SV and HR".
Question 4
MOA of beta blockers for HTN
Correct Answer
decrease SV and HR, inhibit renin release, reduce sympathetic outflow to from the brain
Rationale:
Beta blockers work by mimicking the action of the neurotransmitter norepinephrine in the brain, which decreases sympathetic outflow,
leading to a decrease in heart rate (HR) and cardiac output, ultimately reducing blood pressure. By inhibiting renin release and
reducing systemic vascular resistance (SV), beta blockers further contribute to lowering blood pressure and are thus a primary
mechanism of action (MOA) for beta blockers in treating hypertension (HTN).
Trusted by thousands of students and professionals worldwide Page 2 of 53
,Question 5
side effects of beta blockers
Correct Answer
exercise intolerance, bradycardia, rebound effect, impotence, decompensation
Rationale:
Beta blockers work by blocking the effects of epinephrine, a hormone that increases heart rate and blood pressure, which can lead to
exercise intolerance due to the heart's reduced ability to pump blood efficiently. The reduction in heart rate also manifests as
bradycardia, and the body's compensatory mechanisms can lead to a rebound effect, impotence, and eventually decompensation when
the blockade is too severe, causing an inability of the heart to maintain adequate blood flow.
Question 6
All RA blockers decrease
Correct Answer
SV and TPR
Rationale:
SV (Stroke Volume) and TPR (Total Peripheral Resistance) are related to the cardiac output, which is a measure of how well the heart
is pumping blood into the body. RA (Renin-Angiotensin) blockers primarily affect the renin-angiotensin-aldosterone system, which is a
regulator of blood pressure, rather than directly influencing cardiac output or peripheral resistance.
Question 7
Aliskiren (Tekturna)
Correct Answer
renin inbibitor
Rationale:
Aliskiren, also known as Tekturna, is a direct renin inhibitor because it specifically blocks the action of renin, an enzyme involved in the
renin-angiotensin-aldosterone system (RAAS), which regulates blood pressure. By inhibiting renin, Aliskiren prevents the activation of
angiotensin-converting enzyme (ACE), ultimately leading to decreased angiotensin II levels and a subsequent drop in blood pressure.
Question 8
Renin inhibitors for HTN
Correct Answer
blocks the release of renin and decreases water retention
Rationale:
Renin inhibitors for hypertension work by blocking the release of renin, a key enzyme in the renin-angiotensin-aldosterone system
(RAAS) that triggers a cascade of events leading to increased blood pressure. By inhibiting renin, these medications decrease the
production of angiotensin II, a potent vasoconstrictor that also stimulates the release of aldosterone, a hormone that increases water
retention and sodium reabsorption, further contributing to elevated blood pressure.
Trusted by thousands of students and professionals worldwide Page 3 of 53
, Question 9
side effect of renin inhibitors for HTN
Correct Answer
teratogen
Rationale:
Renin inhibitors, a class of antihypertensive medications, have been associated with fetal abnormalities due to their teratogenic
potential, which arises from their mechanism of action as they can cross the placenta and affect fetal development. This teratogenic
effect is a critical consideration in the treatment of hypertension during pregnancy, necessitating careful selection of antihypertensive
agents with a favorable safety profile.
Question 10
Lisinopril
Correct Answer
ace inhibitor
Rationale:
Lisinopril is classified as an "ace inhibitor" because it falls under the category of drugs that inhibit the angiotensin-converting enzyme
(ACE), a crucial enzyme in the renin-angiotensin-aldosterone system that regulates blood pressure. By blocking ACE, lisinopril reduces
blood pressure by preventing the conversion of angiotensin I to angiotensin II, resulting in vasodilation and decreased peripheral
resistance.
Question 11
MOA of ace inhibitors for HTN
Correct Answer
blocks ACE, so ang I cannot be converted to ang II, bradykinin is increased in the lungs --> cough
Rationale:
ACE inhibitors block the conversion of angiotensin I to angiotensin II, a potent vasoconstrictor that increases blood pressure, thereby
reducing blood pressure. The resulting bradykinin increase in the lungs leads to increased parasympathetic activity, which stimulates
coughing as a side effect.
Question 12
side effects of ACE inhibitors
Correct Answer
cough, angioedema, teratogen
Rationale:
ACE inhibitors cause a decrease in angiotensin II levels, which leads to increased bradykinin levels, a potent vasodilator that can cause
cough as a side effect. Additionally, ACE inhibitors can also increase bradykinin levels, which can trigger angioedema, a severe swelling
of the skin and mucous membranes.
Trusted by thousands of students and professionals worldwide Page 4 of 53
DRUGS
190+ (Updated for 2026) Exam Prep
Pack | A+ Questions & Verified Answers
100% Guarantee Pass
✓ This Exam contains: Pharmacology Exam 3: drugs
✓ 100% Accurate Questions and Answers
✓ 100% Guarantee Pass - Verified by Experts
✓ Each Question Includes The Correct Answer
✓ Expert-Verified
Trusted by thousands of students and professionals worldwide Page 1 of 53
,Question 1
propanolol, metoprolol
Correct Answer
beta blockers
Rationale:
Propanolol and metoprolol are both types of medications classified under the broader category of beta blockers, which is the primary
classification system used in pharmacology. This is because beta blockers are defined by their mechanism of action, which involves
blocking the beta receptors in the body, and both propanolol and metoprolol fit this definition, regardless of their specific uses or
effects.
Question 2
gold standard to treat HTN
Correct Answer
beta blockers
Rationale:
Beta blockers are considered a cornerstone in treating hypertension (HTN) because they effectively reduce cardiac output and
peripheral resistance, thereby lowering blood pressure, without significantly affecting potassium levels. This unique mechanism of
action makes beta blockers an ideal choice for HTN management, especially in patients with heart failure or those who cannot tolerate
diuretics or ACE inhibitors.
Question 3
What do beta blockers reduce in the BP equation?
Correct Answer
SV and HR
Rationale:
Beta blockers are a type of medication that reduce the force of the heart's contractions, thereby decreasing cardiac output (CO) and
subsequently systolic blood pressure (SBP). Since the mean arterial pressure (MAP) equation is MAP = CO x total peripheral resistance
(TPR), reducing CO or increasing TPR would decrease MAP, but since the question focuses on the BP equation, which is typically given
as BP = CO x TPR or BP = 80(1.34 x CO x TPR), the correct reduction related to beta blockers directly impacts the CO term, resulting
in the correct answer being "SV and HR".
Question 4
MOA of beta blockers for HTN
Correct Answer
decrease SV and HR, inhibit renin release, reduce sympathetic outflow to from the brain
Rationale:
Beta blockers work by mimicking the action of the neurotransmitter norepinephrine in the brain, which decreases sympathetic outflow,
leading to a decrease in heart rate (HR) and cardiac output, ultimately reducing blood pressure. By inhibiting renin release and
reducing systemic vascular resistance (SV), beta blockers further contribute to lowering blood pressure and are thus a primary
mechanism of action (MOA) for beta blockers in treating hypertension (HTN).
Trusted by thousands of students and professionals worldwide Page 2 of 53
,Question 5
side effects of beta blockers
Correct Answer
exercise intolerance, bradycardia, rebound effect, impotence, decompensation
Rationale:
Beta blockers work by blocking the effects of epinephrine, a hormone that increases heart rate and blood pressure, which can lead to
exercise intolerance due to the heart's reduced ability to pump blood efficiently. The reduction in heart rate also manifests as
bradycardia, and the body's compensatory mechanisms can lead to a rebound effect, impotence, and eventually decompensation when
the blockade is too severe, causing an inability of the heart to maintain adequate blood flow.
Question 6
All RA blockers decrease
Correct Answer
SV and TPR
Rationale:
SV (Stroke Volume) and TPR (Total Peripheral Resistance) are related to the cardiac output, which is a measure of how well the heart
is pumping blood into the body. RA (Renin-Angiotensin) blockers primarily affect the renin-angiotensin-aldosterone system, which is a
regulator of blood pressure, rather than directly influencing cardiac output or peripheral resistance.
Question 7
Aliskiren (Tekturna)
Correct Answer
renin inbibitor
Rationale:
Aliskiren, also known as Tekturna, is a direct renin inhibitor because it specifically blocks the action of renin, an enzyme involved in the
renin-angiotensin-aldosterone system (RAAS), which regulates blood pressure. By inhibiting renin, Aliskiren prevents the activation of
angiotensin-converting enzyme (ACE), ultimately leading to decreased angiotensin II levels and a subsequent drop in blood pressure.
Question 8
Renin inhibitors for HTN
Correct Answer
blocks the release of renin and decreases water retention
Rationale:
Renin inhibitors for hypertension work by blocking the release of renin, a key enzyme in the renin-angiotensin-aldosterone system
(RAAS) that triggers a cascade of events leading to increased blood pressure. By inhibiting renin, these medications decrease the
production of angiotensin II, a potent vasoconstrictor that also stimulates the release of aldosterone, a hormone that increases water
retention and sodium reabsorption, further contributing to elevated blood pressure.
Trusted by thousands of students and professionals worldwide Page 3 of 53
, Question 9
side effect of renin inhibitors for HTN
Correct Answer
teratogen
Rationale:
Renin inhibitors, a class of antihypertensive medications, have been associated with fetal abnormalities due to their teratogenic
potential, which arises from their mechanism of action as they can cross the placenta and affect fetal development. This teratogenic
effect is a critical consideration in the treatment of hypertension during pregnancy, necessitating careful selection of antihypertensive
agents with a favorable safety profile.
Question 10
Lisinopril
Correct Answer
ace inhibitor
Rationale:
Lisinopril is classified as an "ace inhibitor" because it falls under the category of drugs that inhibit the angiotensin-converting enzyme
(ACE), a crucial enzyme in the renin-angiotensin-aldosterone system that regulates blood pressure. By blocking ACE, lisinopril reduces
blood pressure by preventing the conversion of angiotensin I to angiotensin II, resulting in vasodilation and decreased peripheral
resistance.
Question 11
MOA of ace inhibitors for HTN
Correct Answer
blocks ACE, so ang I cannot be converted to ang II, bradykinin is increased in the lungs --> cough
Rationale:
ACE inhibitors block the conversion of angiotensin I to angiotensin II, a potent vasoconstrictor that increases blood pressure, thereby
reducing blood pressure. The resulting bradykinin increase in the lungs leads to increased parasympathetic activity, which stimulates
coughing as a side effect.
Question 12
side effects of ACE inhibitors
Correct Answer
cough, angioedema, teratogen
Rationale:
ACE inhibitors cause a decrease in angiotensin II levels, which leads to increased bradykinin levels, a potent vasodilator that can cause
cough as a side effect. Additionally, ACE inhibitors can also increase bradykinin levels, which can trigger angioedema, a severe swelling
of the skin and mucous membranes.
Trusted by thousands of students and professionals worldwide Page 4 of 53
