Liver, pancreas, gallbladder Flashcards
ARF is
Characterized by sudden & rapid decrease in renal function
Reversible with early, aggressive treatment its contributing etiology
ARF Phases
Initiation phase: contributing event reduced blood flow to nephrons leads to acute tubular necrosis
Oliguric phase: initial cellular insult fluid volume excess, azotemia seizures, coma, death
Diuretic phase: nephrons recover excretion of wastes & electrolytes still impaired BUN, creatinine, potassium, & phosphate levels still elevated
Recovery phase: takes 3-12 months for recovery normal glomerular filtration & tubular function are restored
Acute/ Chronic Renal Failure Findings
BUN, creatinine, potassium, magnesium, & phosphorus: elevated
Calcium: decreased
RBC count, H&H: decreased
pH of blood: Acidotic (< 7.35)
Urinalysis: decreased urine specific gravity
IVP: shows evidence of renal dysfunction
Percutaneous renal biopsy: destruction of nephrons
Imaging & US: structural defects
Renal angiography: obstructions in blood vessels
S/S of Kidney transplant rejection
Htn, edema, oliguria, fever, abdominal pain, swelling/tenderness over transplanted kidney, shortness of breath, weight gain, increase in serum creatinine levels
If the transplanted kidney was rejected what would you expect next?
Hemodialysis than wait for second transplant.
Hemodialysis
Artificial Kidney Removes Waste Products and Excess Water from Blood
Peritoneal dialysis
The peritoneal membrane is used as a semipermeable membrane across which excess wastes and fluids move from blood in peritoneal vessels into dialysate solution
AV Fistula
AV Fistula is made by sewing a vein and artery together under the skin. AV fistulas may take 1-4 months to mature.
AV graft
An AV graft uses a tube of synthetic material to attach to an artery and a vein in the upper or lower arm. Needles are inserted into the graft to access the patient’s blood. AV grafts 14 days after insertion.
Hemodialysis Nursing Care
Assess & record VS before & during HD
Weigh client; obtain blood for lab tests
Prepare vascular access: “feel the thrill hear the bruit”: Note color of skin, nailbeds, & mobility of fingers. Avoids puncturing the same site used prior
Observe for disequilibrium syndrome
Hemodialysis Teaching
Avoid carrying heavy items
Wear clothing with loose sleeves
Do not sleep on vascular access arm
Do not permit venipunctures, injections, or BPs in vascular access arm
Wash skin over vascular access daily
Asses for a thrill or bruit daily
Report s/sx of infections or impaired blood flow
How is peritoneal dialysis done
Uses peritoneum to filter fluid, wastes, & chemicals
Hypertonic dialysate due to dextrose
Dialysate instilled & drained from abdominal cavity through a catheter
Catheter is sutured in place with dressing applied
Peritoneal Dialysis Nursing care
Obtain & review lab test findings
Record VS & weight
Monitor for s/sx of peritonitis: fever, nausea; vomiting; severe abdominal pain, rigidity, or tenderness before, during, or after PD
More peritoneal dialysis nursing care
*Instillation: Warm solution
Add prescribed drugs e.g. antibiotics
Attach dialysate & tubing to catheter
Instill solution & clamp
Record instillation time, volume, type of dialysate, any drugs added
Monitor BP & pulse frequently
Drainage: Open clamp to observe appearance of fluid
Report drainage if cloudy or blood-tinged
Notify HCP if marked abdominal distention
Measure difference between volume instilled & volume removed
Functions of the liver
Metabolizes glucose
Regulates blood glucose connectration
Converts glycogen to glucose to maintain normal glucose levels
Synthesizes amino acids fromt he breakdown of protein and form muscles produce during excerise
Coverts ammonia
Metabolizes proteins and fats
Stores vitamin A, B, and some B-complex vitamins as well as iron and copper
Metabolizes drugs
Forms and excretes bile
Extretes bilirubin
Synthesizes factors needed for blood coagulation
Liver Dysfunction (Early and late)
*Early:
GI symptoms common-anorexia, n&v, flatulence, diarrhea or constipation
Abd pain- right upper quadrant - enlarged liver
Fever, lassitude (lack of energy, slight wt loss
*Later:
Jaundice
Peripheral edema and ascites
Skin changes / lesions
Hematologic disorders
Endocrine disorders
Peripheral neuropathy
Hemolytic jaundice
due to increased breakdown of RBC`s – increased unconjugated bilirubin in the blood
Hepatocellular jaundice
due to liver`s decreased ability to take up bilirubin, or to conjugate it or to excrete it
Obstructive jaundice
due to impeded flow of bile thru liver or biliary system
Cirrhosis
Chronic progressive, degenerative liver disorder caused by generalized cellular damage
Types of Cirrhosis
- Alcoholic- -associated with excess intake of alcohol and other hepatotoxic substances
- Postnecrotic - complication of viral, toxic or idiopathic hepatitis
- Bililary- assosicated with bililary infection and obstruction
- Nonalcoholic Steatohepatitis (NASH)- fatty live
Hematologic problems
Thrombocytopenia
Leukopenia
Anemia
Coagulation disorders