Renal Flashcards
How to Control BP & Prevent Kidney Dx
- Limit sodium
- Eat balanced diet: fruits, veggies, grains & low fat
- Limit sugar
- Limit red meat
- Weight management
- Stay active
- Limit alcohol
- Medication, lithium, HCTZ, spirolactone
- Licorice
- Corticosteroids
Primary Function of beans
Acid base balance, secretion, absorption, filtration and excretion
pH of blood
7.35 -7.45
Acidosis to alkalosis
What are they 3 regulatory mechanisms
Buffers, respiratory, renal
When do buffers start working ?
Immediately
Where is the respiratory center located?
Medulla
How long does it take respiratory system to work?
Mins to hours
How long does it take renal system to work
2-3 days
3 (renal) mechanisms for acid elimination
- Secrete free hydrogen
- Combine hydrogen with ammonia
- Excretion of weak acid
*can make bicarb and eliminate hydrogen
ABG Values
pH 7.35-7.45
PaCO2 35-45
HCo3 22-26
NI for Respiratory Acidosis
- Watch K+ Levels
- May need intubated
- Administer O2
- Wake pt.
- Incentive spirometry
- W/hold drugs that suppress breathing
- Assess LOC
What is carbonic acid excess caused by
Hyperventilating & respiratory failure
S/S for Respiratory Alkalosis
- Confusion
- Fatigue
- Tenty
- Tachycardia
Lo Ca+ & K+ - Slow deep breaths
What is respiratory alkalosis
Carbonic acid deficit caused by hypoxia from acute pulmonary disorders & hyperventilation
Causes of respiratory alkalosis
- Anxiety
- Pain
- CNS
- Aspirin toxicity
- Fever
- Head injury
- Asthma
- Pregnancy
What is metabolic acidosis
Excess carbonic acid or base bicarbonate deficit
What causes metabolic Acidosis
Ketoacidosis
Lactic acid accumulation (shock)
Severe diarrhea (bicarb in stool)
Kidney Dx (lose ability to reabsorb)
Normal Anion Gap
8-12
TX for metabolic Acidosis
Strick i&o
Diet
Dialysis
**monitor levels
S/S of metabolic Acidosis
Deep rapid breathing
Confusion
Low BP
N/V
Hyper k+
Cardiac changes
**resp alkalosis can happen
What is metabolic alkalosis
Base bicarbonate excess caused by prolonged vomiting or gastric suction
**loss of acid
What diuretic do you use for metabolic alkalosis
Loop thiazide or Lasix
How much blood do thr kidneys filter
1200 MLs per min
Glomerular Function
Urine formation & filtration
What is normal GFR
125 mL/min
What does urine consist of
What the body doesn’t need
How much do normal healthy adults void ?
1-2 L/day
ADH
Important in water balance & regulated by posterior pituitary gland
Aldosterone
Reabsorption of sodium and water & released from adernal cortex
Other functions of the kidney:
RBC production & BP regulation
EPO
Erthyropoientin ** hormone in response to hypoxemia
How does the kidneys regulate BP
Renin is secreted, renin activated angiotensinogen yo angiotensis , angie 1 is converted to angie 2 by ACE , angie 2 stimulates released of aldosterone which reabsorption sodium and water
Ureters
Join the renal pelvis @ uretropelvic junction (UPJ) & join bladder @ ureterovesical junction
How much does bladder hold
600 - 1000 mL
Bladders primary function
Reservoir
What type of muscle Is the destrusor muscle
Smooth
How long is urethra
Female 1-2
Male 8-10
**controls voiding
What forms the urethrovesical unit
Bladder, urethra & pelvic floor muscles
Age related bladder changes
Between 30&90 size decreases 20-30% & by 70 loss of 30-50% of glomerular function, loss of elasticity & muscle support & prostate enlargement
How to assess for renal issues
I&Os **most important, skin color, look at belly, look at mouth, smell breath, edema, bladder distention, contour of abdomen, Weight gain, muscle wasting, percussion, bowel sounds
Creatinine Level
O.6-1.2 mg/dL
**showing pts hydration status
Creatinine Clearance
Fe: 85-125
Ma: 95-140
BUN
6-20mg/mL
*shows if pt is dehydrated
Azotemia
Abnormally high nitrogen waste products
Why do you need to strain urine?
To get stone analysis
Pro Op Cystoscopic Exam
NPO, consent, provide examples of risk, preoperative lab work, CBC w/ coag, use caution w/ contrast if pt. Has renal failure
Pre-Renal
From artery before bean
Post Op NIs
VS 15×4 30X2 THEN Q1HR
I&O
IV SITE MONITOR
ARTERY PRESSURE BLEEDING
Distal pulses
Inspect posterior of site
May be on bed rest
Watch for retroperineal hematoma
Cystoscopic Exam:
Out pt or in pt.
Into utertha with numbing solution
Looks for infection in bladder
May take biopsies
What may pee look like after cystoscopic exam:
Pink tinged urine
Is frank res blood ok after cystoscopic exam
No!
What instructions will the nurse provide to a pt. About a cystometrographt?
Water will be instilled into thr bladder through a catheter to assess bladder tone
True or false:
Most acute AKI Is reversible?
True
Causes of pre-renal AKI
Severe dehydration, heart failure
Is AKI rapid or slow onset
Rapid
Characteristic of AKI
Progression & evaluation in BUN & creatinine
Decreases GFR
Causes Oliguria
PreRenal =
Pressure, volume, perfusion problems
At risk pts
N/V/D
Burn pts
Causes for Intrarenal AKI
Prolonged ischemia, nephrotoxin,antibiotics, chemo drugs, contrast dyes, NSAIDs, car wreck, injury
ATN
Acute tubular necrosis
What causes ATN
Ischemia, nephrotoxins or sepsis
**severe Ischemia causes disruption in basement membrane
Is ATN reversible?
Yes, if basement membrane isn’t destroyed
Risk for intrarenal injury?
Major surgery, general anesthesia, shock, sepsis, toxic meds, blood transfusion, HTN
AKI Postrenal causes:
Mechanical obstruction of outflow:
BPH
Prostate cancer
Renal stones
Trauma
Extra renal tumors
Bilateral ureteral obstruction
Urine refluxes
1st Stage of AKI
Fluid Overload Stage (oliguric phase)
How much urine output with 1st stage oliguric phase
Less than 400mL/day
How long does it last?
10-14 days
How much urine output does a normal healthy adult have ?
2000mL/day output
Causes of metabolic Acidosis
Renal failure. Aspirin toxicity, diarrhea. Kidney injury or Dx, DKA
Causes of metabolic alkalosis
Prolonged Vomiting. Chronic baking soda use, diuretic therphy, massive TRANSFUSIOns, GI suctioning
Respiratory Acidosis
Respiratory failure, sedative or opioid overdose, atelectasis, brain injury
** decreased rr
Respiratory alkalosis
Over mechanical ventilation, anxiety, fear, pain, hyperventilating
**increase rr
How to treat pulmonary edema
Admin 02. Cough and deep breath, semi sitting, hi flowers
What is the most important factor of stone formation
Urine pH
What causes acute poststreptococal glomerular nephritis
Antigen antibody complex
What would lead to renal calci
Urine statist with urinary tract
Obstruction
How does hydronephrosis occur?
Due to dilation of the renal pelvis and calyces proximal to blockage
How to minimize bleeding and discomfort after shock wave lipotrispy
Cold compress
What is the most common cause of acute glomerular nephritis
Presence or systemic infection resulting in thr formation of antigen antibody complexes
How to relax the perineal and promote voiding
Sitz baths
What is most important to monitor after lithotripsy
I & O
What to do with a pt with priaprism
Treat immediately
What would the PSA level be if pt has cancer
More than 4
What would suggest intrarenal failure and acute tubular necrosis
Cast and debris in the urinalysis
What would suggest renal failure
High specific gravity
1.005-1.030
Does uti cause flank pain
No
Most life saving action for pulmonary edema
Administering lasix
What to report immediately to doctor
10ml in 1 hour of urine
Priority for pts getting intravesical chemotherapy
Have pt empty bladder
Effective treating to maintain urinary patent after stone ablation therapy
Increase fluids intake to 3000mL/day
Only way to analyze stone
Straining urine
Priority In kidney stones
Pain
Poststreptococcal glomerular nephritis
Immune complex with streptococcus antigen with human antibody
Who is at risk for slow healing, increasing infection & urosepsis
Elderly, co mobility of diabetes, confusing and poor nutrition
When does a complicated UTi exist
When other co morbities are present
How to prevent UTI
Fluid intake about 2000mL without caffeine, alcohol, citrus juice and chocolate drinks
APSGN
Most recover completely with supportive treatment
AV fistula findings:
Enlarged for easy access of HD
Grafts over fistula
Fistula much less likely to clot
Indicators of fistula patency
Thrill and bruit
Whats allowed on dialysis once nitrogen waste are removed
More protein
How to prevent disequilibruim syndrom
Slow infusion rate
How to treat abdominal pain abd refried shoulder pain during HD
Slow the rate
What should be reported immediately in PD
Cloudy appearing peritoneal effluent it’s a sign of peritonitis
What suggest hypovolumia after kidney transplant
Decrease In BP
Pt with femoral vein catheter on bed rest
Doesn’t need continuous pulse ox
What is not a common occurqncr in peritonitis with PD
Crystal is the output
True or false
A pt should full understand lifestyle changes with dialysis before start ?
TRUE
Renal failure due to inadequate blood flow
Prerenal