Module 9: GU Flashcards
Structures of the Kidneys
Renal Arteries Renal Veins Nephrons (Glomerulus, Bowmans Capsule, Proximal Convoluted Tubule, Henles Loop, Distal Convoluted Tubule) Two Ureters One Bladder One Urethra
Purpose of the kidneys
maintain overall fluid balance, regulate fluid and minerals from food/toxins/medications/etc
Nephrons
basic functional and structural unit of the kidneys that regulate water and soluble substances in the blood by filtering it and reabsorbing what is needed and excreting what is unneeded
Its function is vital for homeostasis of blood volume, plasma osmolarity, and pressure
Glomerulus
To filter plasma, produce glomerular filtrate which passes down the length of the nephron tube to produce urine
Bowmans Capsule
First step in the filtration of blood to form urine
surrounds the glomerulus
Proximal Convoluted Tubule
efficiently regulates pH of filtrate by exchanging hydrogen ions
Loop of Henle
U Shape
Recover of water and sodium chloride from urine occurs here
Distal Convoluted Tubule
In the kidney cortex
Reabsorbs Ca, Na, and Chloride, and regulates pH of urine by secreting protons and absorbing bicarbonate
Ureters
Carries urine from the kidneys to the bladder
Anuria
urinary output less than 100 mL/24 hours
oliguria
diminished urinary output (100-400 mL/24 hours)
Polyuria
excessive urinary output (diuresis)
common in diabetes patients
Hematuria
blood in the urine
Dysuria
pain on urination, difficulty voiding, burning sensation
Proteinuria
protein in the urine
Keotnuria
ketones in the urine
Nocturia
Excessive urination at night
Enuresis
Involuntary voiding
Nocturnal - nighttime; Diurnal - daytime
Important Developmental Considerations of the GU System for Infants
The kidneys function better/begin after 9-12 weeks
Infant kidneys have less ability to concentrate/dilute urine
Important Developmental Considerations of the GU System for Children
Incontinence
Night Wetting
UTIs
Important Developmental Considerations of the GU System for Males
Urethra is 20-21 cm (7.5-8 inches)
Slit is vertical
Urethra goes through the prostate gland
There is a reproductive function
Important Developmental Considerations of the GU System for Females
Urethra is 3.5 cm (1.5 inches) - a lot shorter than males
Questions to ask the patient during the subjective interview for the GU system?
Frequency and Amount (polyuria or oliguria)
color changes/blood presence
pain (dysuria), burning
incomplete emptying
hesitancy, nocturia, dribbling
straining, narrowing stream
incontinence, overflow, stress
PMH
UTIs, STD, injuries
Stones, Gout
Medications (Diuretics)
HTN
What is gout?
uric acid substance backs up in the blood stream and crystallizes in the toes and fingers leading to intense pain