Geriatrics

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14 Terms

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Elderly

65+

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Young old

65-74

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Old old

75-84

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Very old old

85+

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most rapidly growing age group

Adults 85+

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Pharmacokinetics

how does drug get in and out of the body

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Absorption

LEAST impacted by aging

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IM absorption

less muscle therefore less absorption

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Topical

less skin hydration therefore less absorption via patches

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Anticholingerics

adverse effects like dry eyed, mouth blurred vision. Avoid meds with these sides

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Cardio/renal - heart failure

most costly medicare diagnosis in US

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Stroke

most feared conditions amongst older adults

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Renal elimination

  • With age means ur kidneys wont work that well hence a decrease CrCl (creatinine clearance)

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Pharmacodynamics

  • Increased receptor sensitivity with benzodiazepines and CNS depressants

  • Decreased receptor sensitivity for beta adrenergic receptors

  • Decreased baroreceptor sensitivity