GU/RENAL Flashcards
(173 cards)
Describe the pelvic nerve
The pelvic nerve releases acetylcholine to stimulate muscarinic (M3) receptors and through receptors to cause detrusor muscle contraction and urination ( a parasympathetic mechanism).
Describe the pudendal nerve
The pudendal nerve releases acetylcholine to stimulate nicotinic receptors to cause relaxation of the external urethral sphincter and urination (A parasympathetic mechanism).
Describe hypogastric nerve
The hypogastric nerve releases no epinephrine to stimulate beta receptors of the bladder to inhibit urination (keeps the bladder from spilling and urinating) and cause bladder relaxation (a sympathetic mechanism)
Which nerve allows us to void urine?
Pudendal nerve
What nerve and neurotransmitters allow us to sympathetically “hold it”?
The hypogastric nerve working with NE and B3 receptors
Anticholinergics can cause
Urinary retention and therefore urinary stasis could breed bacteria
What is the term cholinergic?
The term Cholinergic refers to those receptors which respond to the transmitter acetylcholine and are mostly parasympathetic. Think rest and digest, so inhibition of these receptors slows secretions, especially those that eat and digestion
What does it mean for something to be anticholinergic?
Anti-secretions
Can’t see, can’t pee, can’t spit, and can’t poop
Define Anti-spasmodic and anticholinergic medications
An anti-spasmodic (Synonym: Spasmolytic) That suppresses muscle spasms and acts to relax the bladder by inhibiting the muscarinic action of acetylcholine on smooth muscle the effect is to prevent spasms of the stomach, intestine, or urinary bladder
80 year old female with urinary incontinence/overactive bladder, wet her pants in church. What is a first-time med that could work here?
Antispasmodics
Anticholinergic that inhibits contraction of the bladder and given by pill (typically oxybutynin)
These are some examples of antispasmodic and anticholinergic medications
Oxybutynin
Tolterodine
Name some examples of conditions that antispasmodic medications account for
Overactive bladder, muscle spasms, breathing problems, diarrhea, gastrointestinal cramps, movement disorders, and others
Define erectile dysfunction medications
Enhances the effects of nitric oxide. Nitric oxide plays a key role and facilitating erections by relaxing the vascular muscle of the penis to facilitate an increase in blood vessel diameter and blood flow to the penis
What are some examples of erectile dysfunction medications?
Sildenafil
Tadalafil
Alprostadil
Defined the alpha one antagonist medication’s
The alpha-1 adrenergic receptor antagonist (Also called alpha-blockers) Or a family of agents that bind to an inhibit type one alpha-adrenergic receptors and thus inhibit smooth muscle contraction
What are some examples of alpha-one antagonist medications?
Doxazosin
Prazosin
Terazosin
Tamsulosin
Define the five alpha-reductase inhibitors
Used in BPH to shrink the size of the prostate. Stops the conversion of testosterone to dihydrotestosterone (DHT). DHT stimulates prostate growth and inhibits hair growth
Define the B3 agonist and give some examples
Shrinks the prostate
Mirabegron
What are some example examples of five alpha-reductase inhibitors?
Finasteride
Dutasteride
Define dysuria medication
Interstitial cystitis is a chronic condition causing bladder pressure, bladder pain and sometimes pelvic pain. MLA in cystitis is unknown
What are some examples of dysuria medications?
Phenazopyridine HCl
Pentosan polysulfate sodium
Define cholinergic agonist medication’s
Cholinergic drugs enhance the effects of acetylcholine on muscarinic receptors, by increasing the actions of the parasympathetic nervous system
What are some examples of cholinergic agonist medications?
Bethanechol
What is bethanechol?
It is for a neurogenic bladder with loss of strength and urinary muscle muscles and helps to treat urinary retention; helps people pee!-Stimulating colonic receptors and therefore bladder control