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NURA-221 EXAM II RESPIRATORY MEDICATIONS EXAM

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NURA-221 EXAM II RESPIRATORY MEDICATIONS EXAM ...

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  • August 23, 2024
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  • NURA-221 II RESPIRATORY MEDICATIONS
  • NURA-221 II RESPIRATORY MEDICATIONS
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NURA-221 EXAM II RESPIRATORY MEDICATIONS EXAM
2024-2025



Histamine Effects

● Increased vascular permeability

● vasodilation (hypotension)

● Urticaria (hives)

● bronchoconstriction

● Increased mucus secretion

H2 is specific to the __________

GI System (secretes gastric acid)

Vasodilation leads to __________ in the skin. This gives people a ____________
appearance.

prominence; flushed

H1 has a role in ______________, memory, and sleep/wake cycles

cognition

H1 receptor activation effects:

Vasodilation

Bronchoconstriction

Increased capillary permeability

CNS effects

Mucus secretion

Histamine mediates _________ reactions.

,allergic

Antihistamines are also known as ______________.

H1 antagonists

H1 antagonists peripheral effects:

decreased in skin flushing, oedema, itching, pain, and decrease in mucous secretion

H1 antagonists CNS effects:

sedation usually, sometimes there is excitement induced of the CNS (usually in
overdose, and typically affects kids)

H1 antagonists also affect ___________, so they can be considered anticholinergic
drugs.

muscarinic receptors

Excitation of the CNS while on antihistamine indicates a potential ___________.

Overdose

The first medication used during anaphylaxis is ____________.

Epinephrine. We may also supplement with H1/H2 antagonist but we will not treat
anaphylaxis w an H1

First Generation Antihistamines:

•diphenhydramine (Benadryl)

•hydroxyzine (Vistaril)

•chlorpheniramine (Chlor-Trimeton)

•promethazine (Phenergan)

•diphenhydramine

Benadryl (1st generation antihistamine)

hydroxyzine

, Vistaril (1st generation antihistamine)

chlorpheniramine

Chlor-Trimeton (1st generation antihistamine)

promethazine

Phenergan (1st generation antihistamine)

2nd Generation Antihistamines

•cetirizine (Zyrtec)

•fexofenadine (Allegra)

•loratadine (Claritin)

cetirizine

Zyrtec; 2nd generation antihistamine

fexofenadine

Allegra;2nd generation antihistamine

lorat

Claritin; 2nd generation antihistamine

3rd Generation Antihistamines:

•levocetirizine (Xyzal)

•desloratadine (Clarinex)




levocetirizine

Xyzal; 3rd generation antihistamine

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