age 1 of 100
NR 293 EXAM 1 FINAL PREP 2025/2026 ACCURATE
QUESTIONS WITH CORRECT DETAILED ANSWERS ||
100% GUARANTEED PASS <LATEST VERSION>
Common cold .......Answer.........Most caused by viral infection:
rhinovirus or influenza
-Virus invades tissues causing upper respiratory infection
Treatment for common cold .......Answer.........Symptomatic only,
not curative
"Empiric therapy"
Empiric therapy .......Answer.........Treatment based on experience
usually w/o adequate data to support its use
Antihistamines .......Answer.........Compete with histamine for
specific receptor sites
,age 2 of 100
Two histamine receptors: H1 and H2
H1 (histamine 1) .......Answer.........Commonly referred to as
antihistamines
Ex: fexofenadine (allegra), Ioratadine (claritin),
diphenhydramine (benedryl)
H2 (histamine 2) .......Answer.........Used to reduce gastric acid in
peptic ulcer disease
Properties of antihistamines .......Answer.........Antihistaminic
Anticholinergic
Sedative
,age 3 of 100
Antihistamine MOA .......Answer.........Block action of histamine at
H1 receptor sites, preventing adverse consequences of histamine
stimulation
-Cannot push histamine off receptor if already bound
-More effective in preventing actions of histamine rather than
reversing them (should be given early)
Adverse consequences of histamine stimulation
.......Answer.........Vasodilation
Increased GI and respiratory secretions
Increased capillary permeability
Antihistamine uses .......Answer.........Management of:
-Nasal allergies
, age 4 of 100
-Seasonal or perennial allergic rhinitis (hay fever)
-Allergic reactions
-Motion sickness
-Parkinson's disease
-Sleep disorders
Relieve symptoms of common cold, sneezing, runny nose
Adverse effects of antihistamines .......Answer.........Anticholinergic
(drying) effects are most common
-Dry mouth
-Difficulty urinating
-Constipation
NR 293 EXAM 1 FINAL PREP 2025/2026 ACCURATE
QUESTIONS WITH CORRECT DETAILED ANSWERS ||
100% GUARANTEED PASS <LATEST VERSION>
Common cold .......Answer.........Most caused by viral infection:
rhinovirus or influenza
-Virus invades tissues causing upper respiratory infection
Treatment for common cold .......Answer.........Symptomatic only,
not curative
"Empiric therapy"
Empiric therapy .......Answer.........Treatment based on experience
usually w/o adequate data to support its use
Antihistamines .......Answer.........Compete with histamine for
specific receptor sites
,age 2 of 100
Two histamine receptors: H1 and H2
H1 (histamine 1) .......Answer.........Commonly referred to as
antihistamines
Ex: fexofenadine (allegra), Ioratadine (claritin),
diphenhydramine (benedryl)
H2 (histamine 2) .......Answer.........Used to reduce gastric acid in
peptic ulcer disease
Properties of antihistamines .......Answer.........Antihistaminic
Anticholinergic
Sedative
,age 3 of 100
Antihistamine MOA .......Answer.........Block action of histamine at
H1 receptor sites, preventing adverse consequences of histamine
stimulation
-Cannot push histamine off receptor if already bound
-More effective in preventing actions of histamine rather than
reversing them (should be given early)
Adverse consequences of histamine stimulation
.......Answer.........Vasodilation
Increased GI and respiratory secretions
Increased capillary permeability
Antihistamine uses .......Answer.........Management of:
-Nasal allergies
, age 4 of 100
-Seasonal or perennial allergic rhinitis (hay fever)
-Allergic reactions
-Motion sickness
-Parkinson's disease
-Sleep disorders
Relieve symptoms of common cold, sneezing, runny nose
Adverse effects of antihistamines .......Answer.........Anticholinergic
(drying) effects are most common
-Dry mouth
-Difficulty urinating
-Constipation
