WGU D116 UNIT 4 EXAM QUESTIONS & ANSWERS 2026-2027 EXAM
P R O F E S S I O N A L P R A C T I C E M AT E R I A L S
WGU D116 Unit 4 Exam
Questions & Answers 2026-
2027
Verified Answers Exam Ready With Rationales
72 QUESTIONS
DOCUMENT OVERVIEW
This document provides 72 exam questions with their correct answers and concise explanations, covering
cardiovascular and respiratory pharmacology. It is suitable for students to study and review key concepts,
serving as a comprehensive resource for certification preparation in this subject area.
CONTENTS
01 Cardiac Medications & Conditions Q1–Q28
02 Pharmacology Principles & Interactions Q29–Q42
03 Anticoagulants & Antiplatelets Q43–Q53
04 Respiratory Medications Q54–Q72
Page 1
, E XA M Q U EST I O N S
Q1 QUESTION 1 OF 72
Which medication class would be prescribed for palpitations?
CORRECT ANSWER
Beta-blockers
Q2 QUESTION 2 OF 72
A patient is taking a drug that interferes with venous constriction.
What should the nurse tell the patient?
CORRECT ANSWER
Ask for assistance when getting out of bed
Drop in venous pressure reduces venous return to the heart which will pool in the extremities and orthostatic
hypotension can happen.
Bradycardia, ha, and SOB are not expected effects
Q3 QUESTION 3 OF 72
A patient is taking a beta1-adrenergic drug to improve the stroke volume of the heart. This drug acts by
increasing __________.
CORRECT ANSWER
Myocardial contractility
Cardiac afterload is determined primarily by the degree of peripheral resistance caused by constriction of
arterioles; increasing afterload would decrease stroke volume
Q4 QUESTION 4 OF 72
Page 2
, A patient with a history of hypertension is admitted for a procedure.
If the patient's arterial pressure decreases, which clinical manifestation would you expect to see?
CORRECT ANSWER
Increased HR
When arterial pressure decreases, the vasoconstrictor center causes constriction of nearly all arterioles,
leading to an increase in peripheral resistance, constriction of veins, increasing venous return, and increased
HR
Q5 QUESTION 5 OF 72
You are teaching a nursing student how blood can return to the heart when pressure in the venous capillary
beds is very low.
Which statement by the student indicates a need for further teaching?
CORRECT ANSWER
"Skeletal muscles relax to allow the free flow of blood"
Skeletal muscle CONTRACTION, along with one-way venous valves, help create an "auxiliary" venous pump that
helps drive blood toward the heart
Constriction of small muscles in venous walls helps increase venous pressure
Negative pressure in the left atrium sucks blood toward the heart
Values (one-way) work with the contraction of skeletal muscles to create a venous pump
Q6 QUESTION 6 OF 72
Besides having diuretic effects for patients with congestive heart failure, thiazides are also used to treat
what? (Select three.)
CORRECT ANSWER
Diabetes insipidus
Hepatic failure
Postmenopausal osteoporosis
Paradoxical effect of reducing urine output in patients with diabetes insipidus
Mobilize edema associated with liver disease
Promote tubular reabsorption of calcium which can reduce the risk of osteoporosis in postmenopausal women
Q7 QUESTION 7 OF 72
Page 3
P R O F E S S I O N A L P R A C T I C E M AT E R I A L S
WGU D116 Unit 4 Exam
Questions & Answers 2026-
2027
Verified Answers Exam Ready With Rationales
72 QUESTIONS
DOCUMENT OVERVIEW
This document provides 72 exam questions with their correct answers and concise explanations, covering
cardiovascular and respiratory pharmacology. It is suitable for students to study and review key concepts,
serving as a comprehensive resource for certification preparation in this subject area.
CONTENTS
01 Cardiac Medications & Conditions Q1–Q28
02 Pharmacology Principles & Interactions Q29–Q42
03 Anticoagulants & Antiplatelets Q43–Q53
04 Respiratory Medications Q54–Q72
Page 1
, E XA M Q U EST I O N S
Q1 QUESTION 1 OF 72
Which medication class would be prescribed for palpitations?
CORRECT ANSWER
Beta-blockers
Q2 QUESTION 2 OF 72
A patient is taking a drug that interferes with venous constriction.
What should the nurse tell the patient?
CORRECT ANSWER
Ask for assistance when getting out of bed
Drop in venous pressure reduces venous return to the heart which will pool in the extremities and orthostatic
hypotension can happen.
Bradycardia, ha, and SOB are not expected effects
Q3 QUESTION 3 OF 72
A patient is taking a beta1-adrenergic drug to improve the stroke volume of the heart. This drug acts by
increasing __________.
CORRECT ANSWER
Myocardial contractility
Cardiac afterload is determined primarily by the degree of peripheral resistance caused by constriction of
arterioles; increasing afterload would decrease stroke volume
Q4 QUESTION 4 OF 72
Page 2
, A patient with a history of hypertension is admitted for a procedure.
If the patient's arterial pressure decreases, which clinical manifestation would you expect to see?
CORRECT ANSWER
Increased HR
When arterial pressure decreases, the vasoconstrictor center causes constriction of nearly all arterioles,
leading to an increase in peripheral resistance, constriction of veins, increasing venous return, and increased
HR
Q5 QUESTION 5 OF 72
You are teaching a nursing student how blood can return to the heart when pressure in the venous capillary
beds is very low.
Which statement by the student indicates a need for further teaching?
CORRECT ANSWER
"Skeletal muscles relax to allow the free flow of blood"
Skeletal muscle CONTRACTION, along with one-way venous valves, help create an "auxiliary" venous pump that
helps drive blood toward the heart
Constriction of small muscles in venous walls helps increase venous pressure
Negative pressure in the left atrium sucks blood toward the heart
Values (one-way) work with the contraction of skeletal muscles to create a venous pump
Q6 QUESTION 6 OF 72
Besides having diuretic effects for patients with congestive heart failure, thiazides are also used to treat
what? (Select three.)
CORRECT ANSWER
Diabetes insipidus
Hepatic failure
Postmenopausal osteoporosis
Paradoxical effect of reducing urine output in patients with diabetes insipidus
Mobilize edema associated with liver disease
Promote tubular reabsorption of calcium which can reduce the risk of osteoporosis in postmenopausal women
Q7 QUESTION 7 OF 72
Page 3
