Week 3: Renal Care Flashcards
What are the 7 functions of the kidney? (then 4x general functions)
- Water homeostasis
- Electrolyte homeostasis
- Acid/base homeostasis
- BP homeostasis (RAAS)
- Removal of waste & toxins (e.g. urea & creatinine)
- Activation of Vit D3 (1.25 dihydroxycholicalciferol)
- Production and secretion of erythropoietin
- Filtration
- Excretion
- Secretion
- Re-absorption
What are the 3 most important organs?
- Brain
- Heart
- Kidneys
What are 7 generalised signs & symptoms of renal failure?
- Fluid overload
- Hyperkalaemia & hyperphosphataemia
- Metabolic acidosis
- Hypertension
- Uraemia
- Hypocalaemia, hyperparathyroidism & renal osteodystrophy (CKD mineral bone disease)
- Anaemia
What are the early symptoms of chronic kidney disease (CKD)?
- Nocturia
- Nausea & Vomiting
- Headaches
- Breathlessness
- Weight loss
slowly and insidiously causes externsive irreversible damage to the kidneys
What are 2 methods of CKD diagnosis?
- GFR <60mL/min/1.73m2 that is present for >3months with or without evidence of kidney damage
- Evidence of kidney damage present >3months evidenced by:
a) Albuminuria (micro or proteinuria)
b) Glomerular haematria
c) Pathological abnormalities (biopsy)
d) Anatomical abnormalities (imaging)
What is eGFR?
- Estimated glomerular filtration rate
- Measures how well the kidneys filter the wastes from the body
- Higher the filtration, the better the kidneys are working
- Normal filtration rate is about 100mLs/min
- Now automatically reported on blood results for GPs
What are the stages of CKD and corresponding effect on GFR?
1 = Kidney damage with normal or increased GFR 2 = Kidney damage with mild decrease in GFR 3a = Moderate reduction in GFR 3b = Moderate reduction in GFR 4 = Severe reduction in GFR 5 = End stage kidney failure
What is the normal range of eGFR?
90 - 120 mL/min/1.73m2
What is the level of GFR for stage 1 CKD?
> 90 mL/min/1.73m2
What is the level of GFR for stage 2 CKD?
60-89 mL/min/1.73m2
What is the level of GFR for stage 3a CKD?
45-59 mL/min/1.73m2
What is the level of GFR for stage 3b CKD?
30-44 mL/min/1.73m2
What is the level of GFR for stage 4 CKD?
15-29 mL/min/1.73m2
What is the level of GFR for stage 5 CKD?
<15 mL/min/1.73m2 (or dialysis)
What are the 7 conditions that increase the risk of developing CKD?
- Diabetes
- Hypertension
- Smokers
- Age >65
- Aboriginals and Torres St Islanders
- Family Hx of KD
- Obesity
What are the sign’s of CKD?
Also known as “silent disease” as it can progress over months/years. It is common for people to lose up to 90% of their kidney function before getting any symptoms.
What are 3 common tests to check for KD?
- Blood test (creatinine)
- Urine test (albumin - creatinine ratio)
- BP
What is the normal result in a urinalysis for colour?
Yellow
What is the normal result in a urinalysis for smell?
Malodorous
What is the normal result in a urinalysis for specific gravity?
1.010 - 1.030
What is the normal result in a urinalysis for protein?
None or trace
What is the normal result in a urinalysis for glucose?
None
What is the normal result in a urinalysis for ketones?
None
What is the normal result in a urinalysis for bilirubin?
None
What is the normal result in a urinalysis for RBC & WBC?
None
What are 2 primary health care goals for stages 1 & 2 of CKD?
- Reduce progression of CKD
2. Reduce cardiovascular risk
What are 3 things are a part of the monitoring process in stages 1 & 2 of CKD?
- 3-6monthly reviews
- BP, weight, urine test
- Laboratory assessment (eGFR, BGL, cholesterol)
T/F
People with CKD are more likely to die from cardiovascular disease than to need dialysis or a transplant
True
What are 5 primary health care goals (or things to consider) for stage 3 of CKD?
- Reduce progression of CKD
- Reduce cardiovascular risk
- Early detection and management of complications
- Avoid medications toxic to kidneys (NSAIDS)
- Appropriate referral to nephrologist or CKD nurse practitioner
How frequently should stage 3 CKD Pts be reviewed?
1-3 months and additional laboratory assessments
What are 4 primary goals for Pts with stage 4 CKD?
- Reduce progression of CKD
- Reduce cardiovascular risk
- Early detection and management of complications
- Avoid medications toxic to kidneys (e.g. NSAIDs, contrast media)
What needs to happen with Pts that have stage 4 CKD?
- Monthly reviews
- Additional laboratory assessments
- Referral to renal specialist team
- Preparation for kidney replacement therapy
- Education i.e. options (including not starting KRT)
- Pre emptive transplantation
What is involved in the management of stage 5 CKD?
- End stage KD
- CKD managed by renal unit
- Highly complex health care required
- Kidney Replacement Therapy (KRT)
- Peritoneal dialysis
- Haemodialysis
- Kidney Transplantation
- Conservative care
What are 6 major causes of stage 5 CKD and prevalence % in Aus?
- Diabetic Nephropathy 41%
- Glomerulonephritis (GN) 19%
- Hypertension 14%
- Polycystic Renal Disease 7%
- Reflux nephropathy 4%
- Analgesic nephropathy 3%
What are common CKD psychologic S&S?
Denial
Anxiety
What are common CKD cardiovascular S&S?
Hypertension
Congestive HF
Atherosclerotic heart disease
What are common CKD GI S&S?
Anorexia
N&V
What are common CKD Endocrine/reproductive S&S?
Hyperparathyroidism
Thyroid abnormalities
Infertility
Sexual dysfunction
What are common CKD metabolic S&S?
Carbohydrate intolerance
Hyperlipidemia
Gout
Nutritional deficiencies
What are common CKD haematologic S&S?
Anemia
Bleeding
Infection
What are common CKD Neurologic S&S?
Fatigue Headache Sleep disturbances Lethargy Confusion
What are common CKD ocular S&S?
Hypertensive retinopathy
What are common CKD Pulmonary S&S?
Uremic lung
Pulmonary oedema
Dyspnea
Pneumonia
What are common CKD integumentary S&S?
Pallor
Dry, scaly skin
Pigmentation changes
Ecchymosis
What are common CKD peripheral neuropathy S&S?
Paresthesias
Motor weakness
Restless legs syndrome
What are some examples of medications used for CKD?
Antihypertensives (+ diuretics) Phosphate binders Sodium bicarbonate Synthetic erythropoietin (EPO) \+/- Resonium \+/- calcitriol (vit D3)
What is Acute Kidney Injury?
Sudden, rapid deterioration of renal function resulting in the retention of nitrogenous waste products (uraemia)
What is often caused by AKI?
Oliguria or anuria
What % of Pts develop AKI while in hospital?
50%
Is AKI reversible?
It is mostly a reversible condition but can be irreversible leading to CKD
What are the causes/location of AKI?
- Pre renal
- Intra renal
- Post renal
What is the classification and causes of Pre Renal AKI?
Disruption of renal perfusion.
Dehydration, sepsis and nephrotoxic drugs
What is the classification and causes of Renal (intrinsic or parenchymal) AKI?
Conditions that directly disrupt kidney functioning involving either the glomerulus or the tubules. Causes: Acute Tubular Necrosis (ATN) Acute Glomerulonephritis Rhabdomyolysis Nephrotoxic substances Blood Transfusions
What is the classification and causes of Post Renal AKI?
Results from an obstruction to urine flow that can occur anywhere within the urinary tract. Causes: Benign Prostatic Hypertrophy Nephrolithiasis Cancer Strictures
What is the 4 phase clinical course & management of AKI?
- Onset phase
a) Fluid volume replacement & restoration of BP - Oliguric phase
a) Fluid overload, electrolyte imbalances
b) Nutritional requirements
c) Kidney replacement therapy - Diuretic phase
- Recovery phase
What is the range for hyperkalaemia?
> 5.5mmol/L
What is caused by hyperkalaemia?
CNS changes (apathy, confusion, tingling) Muscle weakness Acetone breath +/- ketones in urine ECG changes include: - Widened QRS complex - Peaked T waves - Flat or absent T waves - Bradycardia - Asystole
What is the immediate effect of hyperkalaemia management?
Within 15min:
- Dextrose and clear insulin (check hospital protocol, doses will vary)
- NaHCO3
- Calcium gluconate
What is the longer acting effect of hyperkalaemia management?
- Ion-exchanging resins (resonium)
2. Dialysis
In renal failure, which laboratory findings would be altered?
\+ K \+ urea \+ Creatinine - HCO3- - Calcium - Volume changes in urinary Na
What is kidney replacement therapy used for?
It is commenced to prevent death.
To control fluid overload (pulmonary oedema)
To control hyperkalaemia (cardiac arrest)
To control uraemia (coma)
To control metabolic acidosis
What is the process of peritoneal dialysis (PD)?
Process of ridding the body of toxic wastes, excess fluid and control of BP and acidosis by using the peritoneum as a semi permeable membrane.
A fluid solution is used to crease a concentration gradient across the peritoneal membrane.
What are some advantages of Continuous Ambulatory Peritoneal Dialysis (CAPD)?
Manage own care at home Greater independence and control Flexible treatment schedule Less restricted diet Regular clinic visits (4-6 weeks) No needles required for treatment BP control Less stress on body Better for children, elderly pts with cardiac conditions and diabetes
What are some disadvantages of CAPD?
4 exchanges every day for the rest of their life Permanent catheter Body image changes Risk of infection (peritonitis) Possible weight gain Storage space needed for supplies
What is Haemodialysis?
It is the process of ridding the body of toxic wastes, excess fluid and control of BP and acidosis by pumping the blood through an artificial kidney.
A fluid solution (dialysate) is used to create a concentration gradient across a semi-permeable membrane (dialyzer).
What checks are required for patency of an AV fistula?
Thrill = buzzing, tingling, feeling over anastomosis. Bruit = listen with stethoscope for whooshing sound
What should never be done on a limb with a fistula?
Allow venepuncture or IV cannulation
Take a BP
No constrictive / circumferential dressings
What is the haemodialysis procedure?
Typical treatment is 4hrs, 3x weekly, every week for a year. It can be performed in hospitals, in dialysis units or at home
What are the advantages of haemodialysis?
No external access or tubing.
Treatment is only 3x per week.
It can be done in multiple locations by RN or by Pt (flexible treatment options)
What are the disadvantages of haemodialysis?
Machine is required. 2-4 needles inserted for every treatment. May be tired or weak after treatment. Wastes build up between treatments. Diet and fluids are limited. Travel, fixed schedule.
What is another option apart from Haemodialysis (HD) and peritoneal dialysis (PD)?
Kidney transplantation, donor kidney is inserted into either the left or right iliac fossa.
What are the advantages of Kidney transplant?
Most like your own kidneys. No dialysis needed. No access needed. Normal diet. More 'normal' lifestyle. Regular clinic visits.
What are the disadvantages of kidney transplant?
Risks of major surgery.
Risk of rejection
Always on medication which have significant side effects.
Lowered resistance to illness/infections.
Body image changes.
What is conservative care?
It is planned holistic patient-centred care, it’s an option for patients who decided not to have or are medically unsuitable for KRT.
It provides interventions to delay progression of kidney disease and minimise risk of adverse events or complications. Shared decision making. Active symptom management. Detailed communication, including advance care planning. Psychological, social and family support. Cultural and spiritual domains of care.
It doesn’t always include dialysis and may be required for several years.
What are the 3 types of Acute Kidney Replacement Therapy?
- Haemodialysis (intermittent)
- Continuous renal replacement therapies (ICU)
- Peritoneal dialysis (rarely)
Who is indicated for Acute Kidney Replacement Therapy?
It’s only indicated when symptoms of AKI cannot be controlled. E.g. severe pulmonary oedema, uncontrolled hyperkalaemia, uncontrolled acidosis or uraemic symptoms
What is a part of the fluid assessment nursing care for AKI?
- Pts wellbeing
- BP (lying/standing)
- Pulse (rate, rhythm, amplitude)
- Chest (lungs and heart)
- Daily weight
- FBC (input vs output)
- Oedema, skin turgor, mucous membranes
- JVP / CVP
What is included in the general assessments nursing care for AKI?
- LOC / mental status
- ECG
- Review laboratory values
- Diagnostic test results
What are the priority problems involved in the nursing priorities of care for AKI?
- Fluid volume
- High risk for infection
- Anxiety
- High risk for drug toxicities
What complications need to be monitored as part of the nursing priorities of care for CKD and ESKD?
- Electrolytes
- Increasing uraemia
- Increased risk for drug toxicity
- Prevent further anaemia
- Prevent renal osteodystrophy
What assessments / checks need to be done as part of the nursing priorities of care (CKD & ESKD)?
- Slow the progression of CKD
- Fluid assessment
- Maintain access for dialysis (AV fistula = regular checks for patency, no BPs on fistula limb) (peritoneal dialysis catheter = daily aseptic dressing, monitor for signs of infection)
What are the priority problems involved with CKD and ESKD?
- Fluid volume
- Pt education = adherance
- Symptom management
- High risk for drug toxicities
- Psychosocial
- Interdisciplinary team care
What is the prevalence of CKD in Australia?
1 in 3 adult at risk of developing CKD, 10% of adults have CKD
6x as many indigenous were treated for ESKD