Geriatric Phramcotherapy Flashcards
How do we define older adults?
Over 60
Are older adults at a greater risk of chronic diseases or acute disease?
Chronic
Which medications can increase the risk of falling?
-Sedative/hypnotics
-Neuroleptics/antipsychotics
-Antidepressants
-Opioids
-Loop diuretics
-Alpha-blockers
What are some pharmacokinetic changes with aging?
-Slower Tmax
-decrease Vd and increase concentration of water soluble drugs
-Increase Vd and increase half life of lipid-soluble drugs
-Decrease clearance and increase half life of hepatically cleared drugs
-Decrease clearance and increase half life of renally cleared drugs
Is urinary incontinence more common in males or females?
Females
Age-related changes to the bladder and urethra
-Decrease in bladder capacity and elasticity
-Increase in spontaneous detrusor contractions
-Decrease in sphincter compliance
-These may result in an inability to urinate or postpone urination
What happens in the body to cause urge or overactive bladder?
Hyperactivity of detrusor muscles which cause unpredictable voiding
Symptoms of urge or overactive bladder
Urgency
Frequency
Drug causes of urge or overactive bladder
Acetylcholinesterase inhibitors for Alzheimers disease
How do you describe stress urinary incontinence?
-Incontinence of the urethral sphincter with abdominal pressure
-Most often small volume accidents
-More common in women
-Risk factors are multiple childbirths and lack of estrogen
-Can be exacerbated by alpha-antagonists
How do you describe overflow incontinence?
-Results from outlet obstruction or inability to or uncoordinated detrusor constriction
-Most commonly from BPH
Symptoms of overflow incontinence
-Abdominal discomfort or pain
-Frequency
-Feeling the need to void shortly after voiding
How do you describe neurogenic bladder?
-Disruption in neurologic innervation of the bladder
-Inability or uncoordinated detrusor constriction
-Small urine volume when voiding and small volume accidents
-Loss of feeling that bladder is full
-Dribbling of urine
-Frequency and urgency
-Increases risks of UTI
-Increases risks of kidney stones
Possible causes of neurogenic bladder
-Stroke
-Neuropathy
-Spinal cord injury
How do you describe functional incontinence?
Inability to get to the bathroom in a timely fashion