urinary dysfxn Flashcards
internal sphincter vs external sphincter control
internal is involuntary
what happens when there is increased parasympathetic and decreased sympathetic?
detrusors contract
internal sphincter relax
types of incontinence
urge incontinence
stress incontinence
mixed
overflow
functional
what is overflow incontinence?
urinary retention, pressure exceeds urethral resistance
poor bladder emptying
two causes of overflow
blockage in urinary flow
ineffective detrusor muscle
things that cause ineffective detrusor muscle
d/o affecting ANS (DM, cauda equina)
anticholinergic meds
which incontinence can be caused by anticholinergics?
overflow incontinence
sx of overflow incontinence
hesitancy
weak stream
feeling of inadequate emptying
how is overflow incontinence treated?
mirbegrom
cholinergic agents
alpha blockers
how does mirbegrom work?
it is a beta-3 adrenergic agonist that activates sympathetic ANS to relax detrusor muslce
ADR of mirbegrom
increased BP, UTI and HA
what is stress incontinence?
pelvic floor laxity, overwhelmed sphincter
in absence of detrusor contraction, intravesical pressure exceeds maximal urethral pressure
how is stress incontinence treated?
strengthen external sphincter with kegels
risk factors for stress incontinence
menopause, pregnancy, obesity, etc
what does stress incontinence look like
spurts of pee when you sneeze, cough, laugh, workout