NSG-318 EXAM 4 PRACTICE
QUESTIONS AND CORRECT ANSWERS
What is the ctz? ✅the chemoreceptor trigger zone (ctz) is an area in the medulla
oblongata that communicates w/ other structures in the vomiting center to initiate
vomiting
Diphenhydramine (benadryl) ✅1st generation antihistamine
Diphenhydramine (benadryl) uses ✅treat allergic rhinitis, common cold, cough,
sneezing, pruitus, urticaria, prevent motion sickness, can even help with sleep.
Diphenhydramine (benadryl) mode of action ✅antagonizes histamine effects
(benadryl is a very high protein binding drug, wins h1 receptor spot)
What area/system does diphenhydramine affect? ✅upper respiratory
Diphenhydramine cautions ✅narrow-angle glaucoma, bph, pregnancy, breastfeeding,
urinary retention.
Diphenhydramine interactions ✅- increased cns depression with alcohol, opioids,
hypnotics, and barbiturates
-avoid use w/ maois.
Diphenhydramine side effects ✅agitation, insomnia, urinary retention, blurred vision,
dry mouth and throat, hypotension, abdominal pain, constipation, , photosensitivity,
palpitations
Diphenhydramine life threatening effects ✅agranulocytosis, hemolytic anemia,
thrombocytopenia
Dextromethorphan (robitussin) classification ✅antitussive
Dextromethorphan (robitussin) used for a ✅nonproductive cough from respiratory tract
infections or irritants.
Dextromethorphan (robitussin) mode of action ✅depresses cough center in medulla
Dextromethorphan (robitussin) caution ✅pregnancy, asthma, emphysema, hepatic
disease
, Dextromethorphan (robitussin) drug interactions ✅- increased cns depression with:
Alcohol, antihistamines, antidepressants, opiates
- hypotension and hyperpyrexia if taken w/ maois.
Dextromethorphan (robitussin) side effects ✅cns effects, fatigue, gi distress
Dextromethorphan (robitussin) teaching ✅increase fluid to decrease viscosity of
secretions.
Four major pulmonary disorders ✅chronic bronchitis, bronchiectasis, emphysema,
asthma.
Restrictive lung disease ✅a decrease in total lung capacity because of fluid
accumulation or loss of elasticity of the lung
Copd ✅airway obstruction with increased resistance to airflow.
Albuterol classification ✅beta 2 adrenergic agonist
Albuterol uses ✅to treat asthma, prophylaxis and bronchospasm
Albuterol mode of action ✅stimulates beta 2 adrenergic receptors relaxing bronchial
smooth muscle causing bronchodilation.
Albuterol drug interactions ✅- increased effects with other sympathomimetics, maois,
and tricyclic antidepressants
- antagonized effects with beta blockers
Albuterol side effects ✅tremors, agitation, anxiety, sweating, nasopharyngitis,
insomnia, gi distress
Dextromethorphan (robitussin) system effects ✅upper respiratory
Tiotropium (spiriva) classification ✅anticholinergic
Albuterol effects area ✅lower respiratory system.
Tiotropium (spiriva) uses ✅maintenance treatment of asthma and copd
Tiotropium (spiriva) mechanism of action ✅blocks acetylcholine = bronchodilation
Tiotropium (spiriva) caution ✅lactose hypersensitivity, narrow-angle glaucoma, bladder
neck obstruction, renal impairment, breastfeeding, older adults
