Renal Week III Flashcards
Define Proteinuria
urinary protein excretion of more than 150 mg/day
Persistent proteinuria
as 1+ protein on a standard dipstick, two or more times during a 3-month period. This has to be investigated.
The most accurate way to measure proteinuria
24 hour urine
Most common symptom of bladder CA
Hematuria
When to screen for proteinuria in pregnant women
after 24 weeks- needs to be referred, sent to OBGYN, this due to risk of pre eclampsia
What tests to run when you find proteinuria > 150 mg/day
Test urine for :
Urine Dipstick
Urine analysis ( C&S)
24-hour urine collection (or spot protein/creatinine)
urinary sediment
Test Blood for:
CBC w diff, Lipids
renal function tests
fasting glucose and HgA1C
What can cause proteinuria > 150 mg/day
Glomerulonephritis
Hepatitis induced vasculitisis
Urate-related renal disease
Diabetes
drugs used to treat proteinuria
ACE/ARBS- reduces interglomerular pressure
Lifestyle changes to reduce proteinuria
sodium and protein-restricted diets
What can cause Hematuria DD
Drugs (anticoagulants) , Diet, Physical Activity, UTIs, Malignancies, Nephropathies
RBC casts seen via Urinalysis indicate what?
injury to the nephron
Colicky flank/ABD pain with hematuria, NV, increased urinary frequency
Renal stones
Gross hematuria
CA, cystitis, urethritis
Workup for hematuria
Pelvic/Prostate exam
Urine specimen (via cath) for UA, C&S, Cytology
sediment analysis
Imaging:
IVU, US, CT scan, Cystoscopy
Blood draw for:
CBC diff, PTT/INR
Kidney function tests: BUN, Creatinine
Hematuria management
Identify the problem, urological referral, surgery
Risk for renal stones
Diet (high salt, calcium) dehydration, sedentary lifestyle, family hx, gout, hyperparathyroidism
Conservative acute management of stones
Oral hydration, pain management, expectant stone passage
Lab testing for kidney stones
UA, C&S, Urinary PH, 24 hour urine collection, CBC, Serum calcium, Vit D levels
Imaging for kidney stones
KUB x ray, IVP US, CT
Size of stones to refer
> 6-8mm
Criteria for nephrotic syndrome
3-3.5 g of protein in urine/day- refer
What are the elements of a urinary analysis
Dipstick, Microscopy
Proteinuria after prolonged standing
orthostatic proteinuria - repeat test 24/r urine
DX for orthostatic proteinuria
3x negative results of early morning proteinuria- benign conditoon
Why do we check lipids for proteinuria?
client with proteinuria and hyperlipidemia should be aggressively managed to limit ESRD
the goal for tx of proteinuria
1 gram per day or less
When to refer for hematuria
gross frank blood, severe flank pain, unstable vitals, ss of urological obstruction
Glomerular causes of hematuria
Glomerulonephritis
Lupus Nephritis
Interstitial nephritis
pyelonephritis
vascultitis
non glomerular causes of hematuria
infection, cancer, renal stones, polycystic kidney disease, sickle cell, trauma, increased bleeding time, hemorrhagic cystitis
Hematuria and proteinuria with edema, HTN, HX of sore throat or skin infection
Post-infection glomerulonephritis
GFR criteria for kidney damage
GFR< 60mL
Normal kidney function GFR
GFR > 90
GFR Criteria for Kidney failure
GFR <15
the hallmark clinical signs of CKD and AKI
DEcreased GFR<90
Increased serum creatinine
Normal serum creatinine levels
Men 0.74-1.35
Women 0.59-1.04
Volume overload from kidney damage can cause…
irregular lung sounds, jugular vein distension, peripheral and central edema (ascities), extra heart sounds, increased fluid around heart AKA pericarditis
What stage of CKD do we refer to a nephrologist
Stage 4 CKD
GFR< 30
ACR >300 (albumin to creatinine ratio)
When do we refer to nepro when HTN is r/t kidney damage
HTN refractory to tx with 4 or more meds
Risk of starting ACE/ARBS for renal protection
Hyperkalemia ( high K+)
Metformin is contradicted with a GFR …
<30
Hematuria + Proteinuria, peripheral and central edema, tea-colored urine s/p infection
Post streptococcal glomerulonephritis
red/brow-colored urine 2+ heme but no RBC
hemoglobinuria or myoglobinuria
Most common cause of proteinuria in adolescent males
Orthostatic Proteinuria- benign, follow up 1 year
Edema, foamy urine, weight gain, fatigue, anorexia, tired
symptoms of nephrotic syndrome
treatment of nephrotic syndrome in children
oral steroids 2.5-3 months, diet (salt restriction), calcium & Vit D until urine is negative for protein
Treatment of nephrotic syndrome in adults
ACE, a statin for hyperlipidemia, anticoagulants, immunosuppression therapy
proteinuria, peripheral edema, and low serum albumin may indicate
nephrotic syndrome
Diagnosis of CKD
GFR <60 for 3 mths
Screening tests for CKD- done annually if at risk
Spot urine for albumin to creatinine ratio (ACR)
Serum creatinine to estimate GFR
UA
Serum cystatin C
risk factors for renal stones
obesity, family HX, dehydration, warm climates, animal products, high salt, high calcium
work up for kidney stones
constant pain may indicate obstruction, versus colicky, UA, C&S, CBC diff, PTH, CT scan US for prego or kids
What test should be monitored regularly in CKD
Parathyroid hormones= can cause hyper parathyroid
Serum lipids= can cause hyperlipidemia
Vit D, calcium, and phosphorus metabolism are all altered
Your patient has a butterfly rash and periorbital edema, what is in your differential
Lupus induced nephritis
What is a normal specific gravity
1.005-1.030
What is normal urine PH
4.6-8.0
Causes of kidney failure
NSAID use, DM, HTN, Family hx, 60+, race, hx AKD
most common cause of acute nephritis in children globally
Poststreptococcal glomerulonephritis
Testing for Poststreptococcal glomerulonephritis
Antistreptolysin O (ASO) titer
C3- will go down in 8 week
Poststreptococcal glomerulonephritis course of disease with labs
edema - 2 weeks
creatinine - 4 weeks
compliment 8 weeks
hematuria months
proteinuria 1 year
4 weeks s/p PSGN what would we see in labs?
Low c3, elevated ASO titer
Stages of kidney disease
Stage 1 normal GFR >90- with 1 other sign of kidney disease like proteinuria
Stage 2 GFR <60-89 with other signs
Stage 3a GFR 45-59
Stage 3b GFR 30-44
Stage 4 GFR 15-29- refer
Stage 5 GFR <15- refer
What is the definition of microscopic hematuria according to the American Urological
Association (AUA)?
Three or more red blood cells in a noncontaminated urinalysis without evidence of infection
dx of hematuria
3 RBCs or more per high-power field
child has failed to growth, increased thirst, and urination, muscle weakness irritability, acidic urine
renal tubular acidosis
HTN crisis refer to er with BP >
180/120 with ss of end-organ damage
Normal blood pressure
<120/80
elevated BP
120-129 and <80
Stage 1 HTN
130-139 and 80-89
Stage II HTN
140+ and 90+
How do we dx BP
2 separate office visit, at least 2 weeks apart
JNC 8 recommendations are to start Black patients on _____for HTN
dyhydropine CCB (e.g., amlodipine) and/or a thiazide diuretic.
Asian patients often do better when prescribed ______ for HTN
Calcium channel blocker or ARB
Non-Black patients should be started on _____ for HTN
thiazide diuretic, ACE inhibitor, angiotensin blocker, CCB, or combination
These HTN medications are recommended for any client with DM
Ace/ARBS are renal protectives (reduce blood flow through kidney)
The JNC 8 blood pressure goal recommendation for adults less than age 60
< 140/90;
BP goal for adults with confirmed HTN AND known CVD or 10-year ASCVS of 10% or higher
<130/80
The JNC 8 blood pressure goal recommendation for adults older than age 60
<150/90
The JNC 8 blood pressure goal recommendation for any adults with DM or CKD
<140/90
initial workup for HTN
H&P, CBC,UA, Glucose, BUN, Creatinine, Electrolytes, ECG, lipids
When to initiate drug therapy for obesity
BMI 30 or over with failed lifestyle changes - Orlistat
Obesity is a BMI greater than …
30
what age should patients be assessed for
cardiovascular risk factors and calculate
10-year risk of ASCVD
40-75
ACC/AHA guideline recommends moderate-to-high-intensity statin therapy starting at a 10-year ASCVD risk score of 7.5%
10% or greater
Risk factors for CAD coronary artery disease
Age, Gender, race, total cholesterol, hdl, ldl, BP, diabetes, smoking, tx for htn
When to start statins
40-75 with elevated lipids, LDL>130, HDL <40 and one other risk factor like DM, HTN Smoking, or >10% risk factor
Total cholesterol goal
<200
LDL
<100
HDL
> 60
Severe hypertriglyceridemia, elevated liver enzymes, chest pain, resp issue, rhabdomyolysis
Immediate ER
Who needs a fasting lipid panel and how often
adults older than 20 years, repeat every 5 years
Triglyceride goal
<150
Diseases that cause hyperlipidemia
hypothyroidism
diabetes
diseases that must be treated before starting statins
must get to euthyroid and control bs
labs to take before starting statins
liver enzymes- can cause liver damage
patient new on statin develops muscle pain, what lab should be drawn
CK to r/o rhabdo
discontinue statin if this is suspected
drug of choice for hyperlipidemia with liver disease
bile acid sequestrants
DX of metabolic syndrome
Waist >35-40
Triglycerides >150
HDL <40
BP> 130/85
Fasting glucose >100
A physical sign that is suggestive of moderate to severe insulin resistance is the hyperkeratotic condition
acanthosis nigricans.
impaired fasting glucose
100-126
When do we screen kids for hyperlipidemia
2+ with any risk factors like family hx and 9-11 routinely
tx of hyperlipidemia in children
lifestyle changes 1st then meds after 9 y/o - refer for med tx
PCP tx of HTN in kids
start checking 3 y/o start with lifestyle changes and refer if meds needed