NU 578
UNIT 3 EXAM
University of South Alabama.
High-Yield Qs & Verified Answers
with Rationales
This Exam Features:
This document includes 50 high-yield Exam
questions with verified answers and detailed
rationales for Unit 3 of NU 578 at the University of
South Alabama. It is designed to help students quickly review and
reinforce core concepts likely to appear on assessments. The
structured Q&A format supports focused exam preparation and
strengthens clinical reasoning and test-taking skills.
,Question 1
In the treatment of allergic rhinitis which of the following should be
limited to no more than 5 consecutive days use?
A. Antihistamines
B. Oral adrenergics
C. Topical vasoconstrictors
D. Topical glucocorticoids
E. Nasal sprays containing normal saline
Correct Answer: C. Topical vasoconstrictors
Expert Rationale:
Topical nasal vasoconstrictors (e.g., oxymetazoline) provide rapid relief
of nasal congestion but can cause rebound congestion (rhinitis
medicamentosa) if used longer than 3–5 days. This rebound effect
worsens symptoms upon discontinuation. Antihistamines and topical
steroids can be used longer safely. Saline sprays help moisturize
without risk of rebound.
,---
Question 2
The patient must be informed of possible damage to the lungs when
prescribed oral therapy with which of the following drugs?
A. amiodarone (Cordarone)
B. dofetilide (Tikosyn)
C. propafenone (Rhythmol)
D. propranolol (Inderal)
Correct Answer: A. amiodarone (Cordarone)
Expert Rationale:
Amiodarone is associated with pulmonary toxicity, including
pneumonitis and fibrosis, which can be life-threatening. Patients
require monitoring for respiratory symptoms. Other antiarrhythmics
like dofetilide, propafenone, and propranolol do not commonly cause
lung damage.
, ---
Question 3
Although aspirin is often combined with P2Y12 Adenosine
Diphosphate Receptor Antagonists, its use with these agents may:
A. Increase the risk of edema
B. Increase the risk of renal toxicity
C. Increase the risk of hepatotoxicity
D. Increase the risk of GI bleeds
Correct Answer: D. Increase the risk of GI bleeds
Expert Rationale:
Aspirin combined with P2Y12 inhibitors (e.g., clopidogrel) increases
bleeding risk, particularly gastrointestinal bleeding, due to the additive
effect on platelet inhibition and mucosal irritation caused by aspirin.
---
UNIT 3 EXAM
University of South Alabama.
High-Yield Qs & Verified Answers
with Rationales
This Exam Features:
This document includes 50 high-yield Exam
questions with verified answers and detailed
rationales for Unit 3 of NU 578 at the University of
South Alabama. It is designed to help students quickly review and
reinforce core concepts likely to appear on assessments. The
structured Q&A format supports focused exam preparation and
strengthens clinical reasoning and test-taking skills.
,Question 1
In the treatment of allergic rhinitis which of the following should be
limited to no more than 5 consecutive days use?
A. Antihistamines
B. Oral adrenergics
C. Topical vasoconstrictors
D. Topical glucocorticoids
E. Nasal sprays containing normal saline
Correct Answer: C. Topical vasoconstrictors
Expert Rationale:
Topical nasal vasoconstrictors (e.g., oxymetazoline) provide rapid relief
of nasal congestion but can cause rebound congestion (rhinitis
medicamentosa) if used longer than 3–5 days. This rebound effect
worsens symptoms upon discontinuation. Antihistamines and topical
steroids can be used longer safely. Saline sprays help moisturize
without risk of rebound.
,---
Question 2
The patient must be informed of possible damage to the lungs when
prescribed oral therapy with which of the following drugs?
A. amiodarone (Cordarone)
B. dofetilide (Tikosyn)
C. propafenone (Rhythmol)
D. propranolol (Inderal)
Correct Answer: A. amiodarone (Cordarone)
Expert Rationale:
Amiodarone is associated with pulmonary toxicity, including
pneumonitis and fibrosis, which can be life-threatening. Patients
require monitoring for respiratory symptoms. Other antiarrhythmics
like dofetilide, propafenone, and propranolol do not commonly cause
lung damage.
, ---
Question 3
Although aspirin is often combined with P2Y12 Adenosine
Diphosphate Receptor Antagonists, its use with these agents may:
A. Increase the risk of edema
B. Increase the risk of renal toxicity
C. Increase the risk of hepatotoxicity
D. Increase the risk of GI bleeds
Correct Answer: D. Increase the risk of GI bleeds
Expert Rationale:
Aspirin combined with P2Y12 inhibitors (e.g., clopidogrel) increases
bleeding risk, particularly gastrointestinal bleeding, due to the additive
effect on platelet inhibition and mucosal irritation caused by aspirin.
---
