test 3 Flashcards
where is blood filtered
nephrons
3 parts of the kidney
cortex, medulla, renal pelvis
what do nephrons do
filtrate, reabsorb, secrete
renal pyramids
bundles of collecting tubules
in medulla
what does renal pelvis do
receives urine from renal pyramids, stores until ready to go to bladder
outer layer of kidney
cortex. houses nephrons
inner layer
medulla. where renal pyramids are
filtrate is removed from blood
bowmans capsule
where reabsorption in kidney occurs
convoluted tubules
controls convuluted tubules
ADH- increase water absorption
aldosterone- increase sodium reabsorption
both cause less water= less urine
what percentage of urine is filtrate
1% is filtrate, the rest is water
transports urine from renal pelvis to urinary bladder
ureters
muscular sac like organ that holds averagely 500 mL urine
urinary bladder
where do most UTIs happen
urinary bladder
transports urine to exterior
urethra
why are females more prone to UTI
due to close proximity to anus, and the short urethra (1.5 inches approximately)
is the internal urethral sphincter involuntary or voluntary
involuntary
is the external urethral sphincter voluntary or involuntary
voluntary, if you are potty trained
normal kidneys produce how much urine for avg adult
50-60 mL/hr
1500 ml/day
avg person urinates 5-6 times daily
what can cause increased urination
diabetes, UTI, tumor, pregnancy
what can cause decreased urination
kidneys aren’t functioning, blockage, dehydration
urination in infants is based on
weight.
15-60mL per Kg
they dont have voluntary control
what is needed for toilet training
a mature neuromuscular system
adequate communication skills
when do most kids have full bladder control by
4-5 years of age
enuresis
unable to hold urine, usually from holding too long.
nocturnal enuresis
bed wetting
primary nocturnal enuresis
bed wetting in a child who hasnt yet learned to hold all night
secondary nocturnal enuresis
child had no issues with bed wetting but it randomly started occurring all of a sudden. usually related to something else such as some type of trauma, or diabetes.
what happens to kidneys as they age
nephrons decrease
kidney size decreases
common urinary issues in elderly
urgency and frequency occurs
kidney function decreases
loss of bladder elasticity
nocturia
getting up to pee in night
retention
bladder can’t fully empty
nutrition factors influencing urination
high salt intake holds onto water which causes less urine
surgical factors influencing urination
anesthesia can cause urinary retention
how does pregnancy affect urination
pelvic floor muscles weaken
pyridium
medication that makes urine bright orange. Numbs urethra
amitriptyline
medication that causes a blue/green urine
levodopa
medication that causes brown or black urine
what kind of medications can be nephrotoxic
antibiotics, NSAIDs, chemo drugs
med that prevents reabsorption of water
diuretics
why does decreased blood flow affect urine
less blood, less filtration
hypertrophy of prostate
prostate to big, urine cant pass. urinary retention
neuro problems with urination
cant sense bladder is full
urethritis
uti in urethra
cystitis
uti in bladder
pyelonephritis
uti in kidney
most common cause of uti
e. coli
found in human intestinal tract
- wiping front to back helps prevent
uti risk factors
enlarged prostate
females
frequent sex
menopause
uncircumcised males
indwelling catheters
uti symptoms, treatment and diagnostic
back pain, nausea, frequency, urgency, dysuria, hematuria, pyuria, fever, cloudy urine
treatment- antibiotics. cipro is most common
drink water
analgesic for pain
diagnosed by UA and CNS
should you be able to palpate empty bladder
no
what can cause urinary retention
muscle dysfunction
enlarged prostate
anesthesia
disease
injury
infection
obstruction
sensory impairment
urinary retention symptoms and treatment
abdominal pain, bladder distention, low urine output, residual urine, frequency, urgency
treatment- straight (intermittent) catheter, indwelling catheter, suprapubic catheter
stress incontinence
urinating when laughing, sneezing, etc
common in pregnancy
urgency incontinence
overactive detrusor muscle
overflow incontinence
bladder overfills and leaks
functional incontinence
inability to get to bathroom
total incontinence
involuntary
management of incontinence
kegel exercises (women)
bladder training- increase bladder volume
lifestyle modification
prevention of skin breakdown
urinary diversion
surgical opening for urine elimination. can be permanent or temporary
urostomy
ureter to surface
continent urinary reservoir
holding bag for urine
neobladder
alternate bladder
dialysis
when we need to take filtrate out because kidneys aren’t working properly
can:
- restore fluid and electrolytes
- control acid-base balance
- remove waste and toxic materials
from movement of high to low concent
peritoneal dialysis
in abdomen. dialysis fluid in body that pushes waste out
done at home, filtered thru peritoneum
hemodialysis
cleaning the blood. shunt in arm pulls blood out, runs thru dialysis machine and cleans blood and puts it back in thru other shunt
done at a clinic
CNS
urine culture and sensitivity
cultures what is growing and what antibiotics work for it
lab test and bedside tests of urine
UA
CNS
electrolytes
blood urea/creatinine- for dehydration
input and output
daily weights - if holding fluids, more weight
mastication
chewing
what is persistalsis
muscular movement that pushes food in stomach
where is cardiac sphincter
upper part of stomach
how long does food say in stomach on average
4 hours
what does pepsin and protease do
digests proteins
what does food leave stomach as
chyme