Knowledge assessment 2 Flashcards
expected results for urinary characteristics
space gravity: 1.005-1.030
pH: 6
Protein: negative
Glucose: absent or low
Ketones: negative
Microscopic analysis: negative for RBC
Urinary function testing
ultrasound, KUB study, intravenous pyelography, computed tomography, cytoscopy, contrast medium ice imaging
Kidney failure
prerenal: insufficent blood flow,
interrenal: damage to kidney structures such as glomerlus
post renal: obstruction to urine outflow, s/s of decreased urine output, fluid retension, weakness, confusion, fluid electrolyte balances, and cardiac arrhythmias
alterations in urinary elimination:
nocturia- urination at night
dysuria- pain while urination
urinary hesitancy- delay in start of urination
urinary frequency- urinating a lot
urinary retention- cannot urinate
incontinence- loss of bladder control
types of urinary incontiences
stress
urge
temporary
overflow
functional
mixed
Que analysis can be organized by:
disease, physical or psychological barriers to normal elimination, and protentional concerns
urinary elimination
kidneys: filter waste products, fluid and electrolyte balances, red blood cell formation, blood pressure regulation, maintains calcium and phosphate levels
if the urinary system fails..
all other organs will be affected
common urinary problems
urinary retention, UTI, urinary incontience, and urinary diversions
factors that can affect urination
developmental considerations, food and fluid intake, sociocultural/pschological variables, actiity and muscle tone, surgical procedures, diagnostic procedures, pathological conditions, pain, and medications
infants, children and elderly urination
infants: 15-60mL/kg/day ( no voluntary control
children: cannot control until 18-24 months
elderly: changes in kidney and bladder functions, urgency and frequency increase, elasticty and muscle tone decrease leading to nocturia and incomplete urine elimination
What increases and decreases urine output
increase: coffee, tea, alcohol
decrease: foods high in sodium
sociocultural and psychological factors of urination
sociocultural: privacy, facillities, proper positioning
psychological: anxiety and stress
Surgical procedures affecting urinary system
NPO- anesthetics and narcotic: slow the glomerular filtration rate and impair sensory and motor impulses
- lower abdominal and pelvic area- trauma causes edema and inflammation
pathological urination
immobility, communication, cognition in alterations, nuerological conditions, cardiovascular metabolic disorders, bladder/kidney infections, kidney stones, and pain with urination that supresses the urge to void
medications that effect urinary
duieretics prevnt reabsrobtion and antichlolinergnic meds cause urinary retention
color of urine
Normal- pale
kidney or ureter bleeding- dark red
- bladder or urethra bleeding- bright red
dehydration- dark amber
in and out ratios for adults
0.5mL-1mL/kg/hr
normal capacity: 500mL-600mL
normal void- 300mL
urge to void- 150-200mL
common test of urinary systems
urinalysis: clean, to the lab within 2 hrs, first void is best midstream
urine culture and sensitvity: sterile and clean void midstream
timed: test renal function and urine composition for 2, 12, or 24 hrs
common blood tests for urine
BUN: 7-20mL/dL- elevated levels indicate kidney damage of disease
Creatinine: M: 0.8-1.4mg/dL F 0.6-1.2mg/dL and is byproduct of muscle metabolism. elevated levels indicate kidney damage
homeostasis
the bodies ability to maintain that balance. Kidney’s excrete fluid cardiovascular can circulate fluiid if not working well, GI needs to be able to take fluids in
water and the human body: functions of water
hydration –> digestion
medium for transporting electrolytes, nutrients, cellular metabolism, chemical functions, maintains body temperature, and is a lubricant for joints
potassium, sodium hemoglobin, and BUN for fluid and electrolyte balance
Bodily systems: support homeostasis
Thirst – kidneys: controls excerton of fluids – antidieueric hormone: water absorbtion and renin angiotensin aldosterone systems– cardiovascular systems: atrial nutrietic peptide (ANP) and brain natrieutic peptide and lymphatic system helps excessive protein and fluid losses in blood vessels
sources of fluid loss and intake
intake sources of water: 1100-1400mL food: 800-1000mL and cell metabolism 300mL
I + O measures kidney functions
causes: inadequate fluid intake, insensible losses: cannot be measured ( sweat, respiratory, GI tract) and sensible losses ( urine output, wound drainage, gastric drainage)
fluid volume excess
Edema, BP goes up, pulse boudning, LOC, dizzinesss, headache, lab findings: BUN, hematocrit, hemoglobin, and urine specific gravity all decrease
Causes: over hydration, poor kidney function, heart failure,
body water components
intracellular: 40% of our body K+ down
extracellular: 20% of our body Na+ down
sodium function
balance the amount and distribution of water in our bodies, playing a key role in the control of our blood pressure
potassium function
Potassium is a mineral and an electrolyte that your body needs in the proper amount to be able to function its best. It helps your muscles contract, your nerves to function correctly, your heartbeat to stay regular, and certain nutrients get into your cells and waste products to get out.
fluid requirement calculation
35-45mL/kg/day ( use 40)
basic functions of electrolytes
fluid balance, acid base balance, basic nerve, muscle, heart and brain functions
transport of fluid and electrolytes
osmosis: the concentration
active transport: energy to move a fluid from one area to the next
isotonic
equal in fluid movement from one space to another. fluid is normal saline (0.9) or lactated ringers
hypotonic
lower concentration of solids in blood, they move water causing the cell to expand. Fluid is 1/2 normal saline (0.45)
Hypertonic
high concentration solids in blood, they move water away causing cell to shrink. fluid is dextrose 10 and 3% normal saline
lines of defense
normal pH 7.35-7.45: power of hydrogen in our bodies, a high concentration of hydrogen ions results results in states of acidosis (7.35) low concentration of hydrogen ions results in a state of alkalosis
PaO2- 80-100mmHg
SaO2 > 95%
Co2: 35-45: greater then 45 indication of acidosis, more indicates alkalosis
chemical : ingestion of food, respiratory renal, respiratory equated with Co2, renal equated with bicarbonate
respiratory alkalosis
Respiratory alkalosis occurs when low carbon dioxide levels disrupt your blood’s acid-base balance. Co2 is down, H+ goes up
- from severe anxiety and no not enough o2