Fluid and Electroytes lecture Flashcards
F/E, AKI, CKD
Acronym for maintaining Homeostasis in the body
- A: Acid-Base Balance
- W: Water removal: regulate fluid, ADH (Vasopressin)
- E: Erythropoiesis: Production of RBC’s
- T: Toxin Removal: waste products, urea, renal clearance
- B: Blood pressure regulation: renin
- E: Electrolyte Balance
- D: Vitamin D activation
A WET BED
Where does ADH come from and what is the purpose of ADH?
posterior pituitary gland; tells kidneys to hold on to more water
What elevated labs can be indicitive of unhealthy kidneys?
- Urea
- Creatinine
- Potassium
Urine production <100 mL/24hr
Anuria
What is anuria?
Urine production <100 mL/24hr
Urine Production < 400 mL/24hr
Oliguria
What is oliguria
Urine Production < 400 mL/24hr
- Excessive urine production
- Producing > 2,000/24mL hr
Polyuria
What is polyuria
- Excessive urine production
- Producing > 2,000/24mL hr
Infection of the kidney’s medulla or cortex
Pyelonephritis
Inflammation of the glomerular capillary wals, causing impaired filtration
Glomerulonephritis
Medications used to manage renal failure patients
- Angiotension-converting enzyme or ACE Inhibitors
- Angiotension Receptor Blockers or ARB’s
- Inotropic agents
- Diuretics
- Regular insulin and Dextrose
- Epoetin Alfa
- Iron supplements
- Magnesium base antacids
Enalapril is an example of what type of medication?
ACE Inhibitor
Angiotension Converting enzyme inhibitor
Losartan is an example of what kind of medication?
ARB
Angiotension Receptor Blocker
Medications that can reduce proteinuria and slow progression of kidney disease in diabetics
ACE Inhibitors & ARB’s
Medications that can manage heart failure and pulmonary edema
Inotropic agents and diuretics
Medications that can increase H&H
Epoetin alfa & Iron
Patients with poor kidney function should avoid what OTC medication and why?
Magnesium based antacids due to high risk of toxicity
Abrupt decline in renal function
Acute Kidney Injury or AKI
Classifications of AKI causes
- Pre-renal
- Intra-renal
- Post-renal
What classifaction of AKI cause is this:
Sudden and severe drop in BP, shock, or interruption of blood flow to the kindeys from severe injury or illness
- Pre-renal
What classifaction of AKI cause is this:
Direct damage to the kidneys by inflammation, toxins, drugs, infection, or reduced blood supply
- Intra-renal
What classifaction of AKI cause is this:
Sudden obstruction of the urine flow due to enlarged prostate, kidney stones, bladder tumor or injury
- Post-renal
Is AKI reversible?
YES
List some nephrotoxic medications
- Amnioglycosides
- Digoxin
- Phenytoin
- ACE Inhibitors
- Magnesium-containing agents
- NSAIDs
- Contrast Dye
- Metformin
Nephrotoxic medications require _______ based on ____________?
adjustment, kidney clearance and function
Gentamycin and vancomycin are examples of what?
Amnioglycosides
Name the phases of AKI
- Initiation
- Oliguria
- Diuresis
- Recovery
What phase of AKI is this?
Urine output is still normal, pt usually does not know they are sick
Initiation or Non-oliguric
What phase of AKI is this?
- Urine output minimun approximately 400mL/24 hrs or 0.5mL/kg/hr
- Increase uremic symptoms
- Hyperkalemia
Oliguria
What phase of AKI is this?
Gradual increase in urine output and lab values begin to decrease but renal functions still abnormal
Diuresis
What phase of AKI is this?
- Can last 3-12 months
- Labs begin returning to normal
Recovery
What is the term used when urea, nitrogen, creatinine wase in blood?
Azteimia
What is Azotemia?
Urea, nitrogen, creatinine waste in blood
Expected electrolyte imbalances in AKI pt’s
- Increased K
- Increased Phos
- Decreased Ca
- Decreased Na
What is the term used to describe excess urea in blood causing renal decline and involving multiple body systems?
Uremia
What is uremia
Excess urea in blood causing renal decline and involving multiple body systems
Clinical manifestations of AKI
- Azotemia
- Increased BUN and Creatinine
- May or may not have oliguria
- FVO
- Electrolyte imbalances
- Metabolic acidosis
- Edema
- Anemia
- Uremia
- Anorexia
- N/V/D
- Confusion
- Lethargy
- Seizures
Expected BUN and Creatinine for AKI patients
Elevated