Pharm: Upper Resp Flashcards

1
Q

common cold comes from what virus

A

rhinovirus

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2
Q

rhinovirus causes what

A

acute inflammation of the nasal mucosa
acute rhinitis

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3
Q

competes with histamine for receptor sites and prevents a histamine response

A

antihistamines (block H1 receptor sites, decreasing secretions)

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4
Q

1st gen antihistamine side effects

A

drowsiness and dry mouth
dizziness, fatigue, blurred vision, disturbed coordination, urine retention

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5
Q

2nd gen antihistamine side effects

A

less drowsiness and less anticholinergic symptoms (block acetylcholine)

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6
Q

name a 1st gen antihistamine

A

Diphenhydramine

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7
Q

name a 2nd gen antihistamine

A

fexofenadine

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8
Q

primary goal when using antihistamines

A

less inflammation of nasal cavity and less secretions

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9
Q

contraindications with diphenhydramine

A

closed-angle glaucoma, urinary retention, severe liver disease

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10
Q

what is the interaction that can occur on diphenhydramine??

A

increase CNS depression with alcohol and other CNS depressants like opiates
(stop breathing/drop BP)

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11
Q

what is the major concern with diphenhydramine

A

sedation (warn pt to avoid driving and dangerous activities)
avoid alcohol

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12
Q

what do we give with oral diphenhydramine to decrease GI upset?

A

food

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13
Q

what can be used to relieve dry mouth on diphenhydramine?

A

sugarless candy, gum, or ice chips

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14
Q

onset and duration of diphenhydramine (PO)

A

onset- 15 min
duration- 4-7hrs
dose 25mg q6h

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15
Q

dilation of nasal blood vessels and swelling of nasal cavity

A

nasal congestion

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16
Q

stimulate alpha-adrenergic receptors, produces nasal vasular constriction, shrinks nasal mucous membranes, and reduces nasal secretion

A

nasal decongestants

17
Q

when to use nasal decongestants

A

allergic rhinitis, inflammation, infection

18
Q

side effects/adverse reactions of nasal decongestants

A

nervous, restless (lessens w/ time)
rebound nasal congestion w/ overuse (use as ordered)

19
Q

rebound nasal congestion is known as ____

A

rhinitis medicamentosa

20
Q

interactions with nasal decongestants

A

caffeine (increases restlessness)
MAOIs (hypertensive crisis)
decreases effects of beta blockers

21
Q

goal of nasal decongestants

A

less congestion

22
Q

antiinflammatory, decrease rhinorrhea, sneezing, and congestion

A

intranasal glucocorticoids (steroids)

23
Q

rhinorrhea means___

A

runny nose

24
Q

intranasal glucocorticoids are used for ____

A

allergic rhinitis

25
Q

example of intranasal glucocorticoid

A

fluticasone
steroids end in -sone

26
Q

how to use an intranasal glucocorticoid

A

direct away from septum (causes irritation)
overuse = dryness

27
Q

goal of intranasal glucocorticoids

A

decrease inflammation which will relieve congestion

28
Q

only use an antitussive on what?

A

irritating, nonproductive cough

29
Q

acts on the cough-control center in the medulla to suppress the cough reflex

A

antitussive

30
Q

the 3 types of antitussive preparations

A

nonopioid (dextromethorphan OTC)
opioid (codine sedative effect)
combination (codine w/ guiafensin)

31
Q

loosens bronchial secretions and allows elimination by coughing

A

expectorants

32
Q

what also needs to happen when taking an expectorant?

A

increase fluid intake (loosen secretions)

33
Q

example of an expectorant

A

guiafensin

34
Q

side effects of expectorants

A

drowsiness, dizziness, HA, N and V, diarrhea

35
Q

inflammation of mucous membranes of sinuses

A

sinusitis

36
Q

inflammation of the throat

A

acute pharyngitis