QUESTIONS AND THEIR VERIFIED
ANSWERS
What is the function of H1?
extravascular smooth muscles—including those lining the
nasal cavity—are constricted
what is the function of H2?
increase in gastric secretions occurs,
what is the function of first generation
antihistamines?
drowsiness, dry mouth, and other anticholinergic
symptoms
what is the function of second generation
antihistamines?
less anticholinergic effects and a lower incidence of
drowsiness
what type of anthistamines are common in OTC
medications?
first gen
what is the function of diphenhydramine?
first generation antihistamines to treat rhinitis
what are the main side effects of first generation
antihistamines?
drowsiness, dizziness, fatigue, and disturbed coordination
What are the main adverse effects of first gen
antihistamines?
anticholinergic symptom (dry)
,nonsedating antihistamines
second generation anthistamines
what is the function of Nasal decongestants?
stimulate the alpha-adrenergic receptors, producing
vasoconstriction to to reduce runny nose
What can occur when taking decongestants?
blood pressure and blood glucose levels
Assessment for administering diphenhydramine
Determine baseline vital signs
drug history to avoid interactions
Assess for anticholingeric
Assess cardiac and respiratory status.
What should you priortize in a patient taking
diphenhydramine?
airway obstruction
Planning for a patient taking diphenhydramine?
Patient will have decreased nasal congestion or sleep 6-8
hours
Nursing interventions for patients on
diphenhydramine?
Give oral drug with food & give IM avoid subq
patient teaching for diphenhydramine?
teach patients not to drive
take drug 30 min before for motion sickness
avoid alcohol & CNS despressants
avoid breast feeding
Evaluation for diphenhydramine?
evaluate allergic symptoms or as a sleep aid.
Who should you diphenhydramine (benadryl) with
caution?
narrow angle glaucoma
,prototype for diphenhydramine?
benedryl
why is benadryl contraindicated in people with
asthma, copd, liver disease, neonates?
it drys out airways by thickening mucous
liver disease: liver metabolizes the drug
neonates: immature liver & kidney
When are expectorants used?
productive cough
when are antitussives used?
used to supress nonproductive coughs
Name an antitussive?
Dextromethorphan (Benylin)
name an expectorant?
Guaifenesin (Mucinex)
what are lower respiratory conditions?
restrictive lung disease & COPD
condition where patient has trouble inhaling and lungs
have trouble expanding?
restrictive lung disease
condition where patient has trouble exhaling and
airways are narrowed or obstructed?
COPD
What factors can cause restrictive lung disease?
obesity, pulmonary disease, and neuromuscular disease
what condtitions can cause COPD?
asthma, bronchiecatsis, chronic bronchitis
which drug decreases excitability of cough center in
the medulla?
Dextromethorphan Hydrobromide
, what is a nonpharmacologic method to provide
temporary releif for a non produtivev cough?
hard candy
what is a nonpharmocoligic way to excrete mucus?
hydration
what should'nt be given for Acute pharyngitis?
antibiotics
A patient tells the nurse that he has started to take an
over-the-counter antihistamine, diphenhydramine. In
teaching about side effects, what is most important for
the nurse to tell the patient?
Avoid driving a motor vehicle until stabilized on the drug.
A patient complains of a sore throat and has been told
it is due to beta-hemolytic streptococcal infection. The
nurse anticipates that the patient has which acute
condition?
Pharyngitis
A patient is prescribed a decongestant nasal spray
that contains oxymetazoline. What will the nurse teach
the patient?
Limit use of the drug to 3 days to prevent rebound nasal
congestion.
A patient has been prescribed guaifenesin. The nurse
understands that the purpose of the drug is to
accomplish what?
Loosen bronchial secretions so coughing can eliminate
them
Beclomethasone has been prescribed for a patient
with allergic rhinitis. What should the nurse teach the
patient regarding this medication?