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CKD Johns Hopkins
CKD module
98
Medical
Graduate
11/06/2013

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Cards

Term
CKD is defined as:
Definition
•The presence of markers of kidney damage for > three months, such as abnormalities in the composition of blood or urine, or abnormalities on imaging tests

OR

•The presence of a GFR of less than 60 mL/min/1.73 m2 for > 3 months with or without other signs of kidney damage.
.
Term
What is the most common cause for CKD in the US?
Definition
Diabetes
Term
Between the ages of 35 and 55, the GFR drops by approximately . . .
Definition
1 mL/min per year
Term
serum creatinine becomes less predictive of renal function as age increases due to . . .
Definition
decreased muscle mass and creatinine generation associated with advancing age.
Term
Both hepatitis B and C can result in CKD, typically . . . (what two kidney diseases?)
Definition
membranous nephropathy or membranoproliferative glomerulonephritis
Term
Patients chronically infected with hepatitis B may also develop __________, while those chronically infected with hepatitis C may also develop ____________
Definition
polyarteritis nodosa
cryoglobulinemia
Term
What is cryoglobulinemia?
Definition
condition in which the blood contains large amounts of cryoglobulins - proteins (mostly immunoglobulins themselves) that become insoluble at reduced temperatures. Cryoglobulinemia can be associated with various diseases such as multiple myeloma and hepatitis C infection.
Term
patients with advanced liver disease are also at increased risk for developing . . .
Definition
CKD due to compensatory hemodynamic changes that occur in cirrhosis.
Term
The most common cause of analgesic nephropathy historically has been the combination of . . .
Definition
acetaminophen and aspirin
Term
Onset of analgesic nephropathy is insidious, often beginning as . . .
Definition
polyuria
Term
Individuals with an activated renin-angiotensin system are at increased risk of developing . . .
Definition
AKI from NSAIDs
Term
•CKD due to HIVAN responds to . . .
Definition
HAART
Term
To assess kidney function, the clinician should measure . . .
Definition
serum creatinine
GFR
urinary sediment
daily urine albumin or protein excretion
Term
The normal GFR in young adults is approximately . . .
Definition
120 ml/min/1.73 m2 BSA
Term
These creatinine-based estimates of GFR are not perfect and are affected by . . .
Definition
nutritional status
dietary intake
muscle mass
Term
the least biased of the methods available to estimate the GFR is which equation?
Definition
CKD-EPI
Term
•Estimates of GFR are not useful in patients with . . .
Definition
AKI
extremes of age and body size significant proteinuria
Term
In the normal person, daily urinary albumin loss is ___________, and protein loss is usually less than _______
Definition
albumin less than 20mg
protein loss less than 150 mg
Term
What is the earliest sign of kideny disease?
Definition
albuminuria
Term
urine dipsticks are insensitive for detecting . . . such as . . .
Definition
non-albumin proteins
monoclonal immunoglobulins excreted in multiple myeloma.
Term
If you suspect CKD what is the first test you get?
The second?
Definition
urine dipstick
spot urine
Term
How do you calculate a spot protein/creatinine ratio?
Definition
(Urine Protein)/(Urine Creatinine)multiplied by 1000
Term
What are causes of transient proteinuria?
Definition
upright position
exercise
fever
dehydration
Term
protein/creatinine estimates what?
Definition
24 hour urine protein in mg
Term
Albuminuria is a marker for increased risk of _____________ has been associated with increased risk for acute kidney injury and CKD progression independent of kidney function.
Definition
cardiovascular disease
Term
Albuminuria has been associated with increased risk for ____________ and ____________ independent of kidney function.
Definition
acute kidney injury
CKD progression
Term
The spot urine protein/ creatinine may ___________ the 24H urine protein excretion in those with higher extremes of muscle mass.
Definition
underestimate
(protein/creatinine)= bottom number gets bigger and decreases the ratio
Term
use of the spot urine protein/creatinine ratio should be avoided in individuals with ___________
Definition
acute kidney injury
Term
As urinary creatinine excretion is variably __________ in AKI, and the spot urine protein/ creatinine ratio may grossly __________ 24H protein excretion.
Definition
decreased
overestimate
Term
What is considered a NORMAL albumin/creatinine ratio?

Moderately elevated?

Severely increased?
Definition
< 30 mg/g

30-300 mg/g

>300mg/g
Term
What is considered a NORMAL protein/creatinine ratio?

What is abnormal?
Definition
<200 mg/g

>200 mg/g
Term
What is a NORMAL 24 hour protein?
Definition
<250 mg/g
Term
What is preferred protein or albumin spot urine?
Definition
ALBUMIN, unless >500 or protein is believed to something other than albumin
Term
Estimated GFR is the best marker of __________; whereas persistent albuminuria is the best marker of __________
Definition
kidney function
kidney damage
Term
All abnormal results should be __________________
Definition
CONFIRMED on a separate occasion within THREE MONTHS.
Term
Does a normal GFR in the face of albuminuria exclude kidney damage?
Definition
NO!
Term
What are the causes of BILATERALLY SMALL kidneys?
Definition
HTN
Chronic Glomerulonephritis
Bilateral renal artery stenosis
analgesis nephropathy
Term
What are the causes of BILATERALLY LARGE SMOOTH kidneys?
Definition
diabetic nephropathy
infiltrative disease (amyloidosis)
Term
What are the causes of UNILATERAL SMALL SCARRED kidney?
Definition
Previous renal surgery/trauma
Unilateral renal artery stenosis
Reflux nephropathy
Term
What is the cause of large cystic kidneys?
Definition
Normal variant
polycystic kidney disease
Renal Cell carcinoma (usually solitary mass)
Term
•Sequelae and management of CKD is ___________, hence individuals with CKD should be categorized by ____ and __________.
Definition
stage-dependent
GFR
albuminuria level
Term
•CKD is categorized by both GFR and albuminuria level to better capture risk of ____________
Definition
progression of CKD
Term
What is the primary cause of death in pt's with CKD?
Definition
Cardiovascular disease
Term
What is the goal BP in CKD?
Definition
BP< 140/90
BP< 130/80 if albuminuria is present
Term
What stage is somone with a GFR of >/90 (normal high)
Definition
G1
Term
What stage is somone with a GFR of 60-89? (mildly decreased)
Definition
G2
Term
What stage is somone with a GFR of 45-59 (mild to moderately decreased)
Definition
G3a
Term
What stage is somone with a GFR of 40-44 (moderately to severely decreased)
Definition
G3b
Term
GFR 15-29 (Severely decreased)
Definition
G4
Term
GFR <15 (Kidney Failure)
Definition
G5
Term
A patient presenting with CKD who has diabetes, persistent albuminuria, and diabetic retinopathy can be diagnosed with _______________ without _______________
Definition
diabetic nephropathy
renal biopsy, unless clinical evidence suggests another etiology
Term
mortality is doubled in patients with CKD and a hematocrit of less than _______.
Definition
30% (Hgb < 10)
Term
TRUE OR FALSE:
There is no value in checking serum erythropoietin levels in pts with CKD;
Definition
TRUE, they are typically elevated in CKD but insufficiently so relative to the level of anemia
Term
Anemia due to CKD is therefore treated as a diagnosis of __________
Definition
exclusion; iron deficiency and other causes should be evaluated.
Term
The FDA has approved use of an ESA when hemoglobin falls below ______
Definition
10 g/dl
Term
What are the potential adverse SE of useing Erythropoetin Stimulating Agents (ESAs)?
Definition
Cardiovascular event, stroke, and death
Term
Due to the SE of ESAs, the FDA recommendation of reducing the dose or withholding ESAs when hemoglobin . . .
Definition
exceeds 10 g/dl or increases by greater than 1g/dl in a 2-week period.
Term
•Screening for anemia begins with category . . .
Definition
CKD G3a
Term
•Patients with CKD are more prone to volume overload if . . .
Definition
sodium intake is not controlled
Term
•If indicated, potassium is restricted to . . .
Definition
2-4g/day
Term
•Sodium bicarbonate is indicated (0.5-1mg/kg/day) when serum bicarbonate falls to . . .
Definition
22mEq/L or below.
Term
•The effects of protein restriction on progression of CKD are ________, and only in those with GFR category _____ or worse.
Definition
modest
G3a
Term
Phosphorus is restritcted in CKD when the serum Ph reaches . . .
Definition
>4.6 mg/dl
Term
Calcium intake in CKD is . . .
Definition
<2000 mg/day
Term
What acid/base disturbance typically occurs in patients with CKD?
Definition
metabolic acidosis
Term
Metabolic acidosis in CKD occura due to . . .
Definition
impaired hydrogen ion excretion by the kidneys
Term
recommended that once a patient's GFR declines below _______, screening for malnutrition with serum _______ and __________ be done _________.
Definition
20
albumin
body weight
quarterly
Term
•In CKD, the kidneys lose their ability to convert vitamin D (i.e., 25OH vitamin D) into its . . .
Definition
active form (i.e., 1, 25OH vitamin D).
Term
•As a result of CKD, calcium levels _____, phosphorous levels ______, and iPTH levels ______ to counteract these changes
Definition
calcium falls
phosphorous rises
iPTH levels rise
Term
•If the electrolyte disturbances found in CKD (calcium and phos) are left untreated, what will develop?
Definition
osteitis fibrosa cystica
Term
•In GFR categories 3b-5 (GFR <45 ml/min), the goal is to keep calcium and phosphorus in the . . .
Definition
normal range
Term
Assessment for mineral and bone disorder begins when the GFR falls below _______
Definition
45
Term
All patients with GFR category G3b-G5 should undergo measurement of serum ________,________ , _________, and _______ at least once.
Definition
calcium, phosphorus, 25-OH vitamin D, and iPTH
Term
target goal and management of 25-OH vitamin D is . . .
Definition
target goal of 30ng/ml or greater.
Term
If hypercalcemia is accompanied by an elevated initial iPTH, evaluation for . . .
Definition
primary hyperparathyroidism should be considered
Term
If the calcium and phos levels in CKD are over treated, what may develop?
Definition
adynamic bone disease
Term
Vitamin D guidelines for CKD pts is . . .
Definition
the same as the general population
Term
At what level of vitamin D do you give supplementation?
Definition
<20ng/ml are treated, but higher levels are not treated, regardless of iPTH levels.
Term
•Bone and mineral metabolism in CKD patients is assessed through evaluation of . . .
Definition
phosphorus levels (as opposed to iPTH levels)
Term
•Phosphorus levels should be maintained in the . . .
Definition
normal range
Term
•If phosphorus is elevated and calcium is low, treat with a . . .
Definition
calcium-based phosphate-binder.
Term
•If phosphorus is elevated and calcium is normal or high, treat with a . . .
Definition
non-calcium-based phosphate binder.
Term
25-OH vitamin D level is >20ng/ml, vitamin D supplements or analogs are . . .
Definition
not indicated, even in those patients with elevated iPTH levels.
Term
hyperphosphatemia is one of the key contributors to __________ resulting in cardiovascular complications
Definition
vascular calcification
cardiovascul
Term
For improved efficacy, patients should be instructed to ingest phosphate binders . . .
Definition
with, rather than before or after, meals.
Term
Secondary hyperparathyroidism associated with CKD typically presents with
Definition
LOW serum calcium, HIGH serum phosphorus, and HIGH iPTH.
Term
Secondary hyperparathyroidism associated with Vitamin D deficiency typically presents with
Definition
LOW serum calcium, LOW serum phosphorus, and HIGH iPTH.
Term
Within 10 years, _______ of patients with type 2 diabetes will have microalbuminuria.
Definition
one quarter
Term
Hypertension in a patient with type 1 diabetes typically signifies the presence of ______________
Definition
diabetic kidney disease
Term
The ACCORD study showed that treating patients with diabetes to goal blood pressure <120/80 mm Hg was associated with increased . . .
Definition
risk of syncope and worsening cardiovascular outcomes.
Term
following blood pressure goals among diabetic patients:

•Without albuminuria: ___________
•With albuminuria (>30 mg/g): ___________
Definition
<140/90 mm Hg
<130/80 mm Hg
Term
ACEs and ARBs should be used with caution in those with GFR category ___________
Definition
4-5 CKD.
Term
How much of a decline in GFR is expected in patients who start an ACE-in or an ARB?
Definition
30%

greater declines in GFR should prompt discontinuation of the drug and further investigation of its cause, such as renal artery stenosis.
Term
Other than ACE-inb and ARBs, what four classes of antihypertensives are beneficial in someone with CKD?
Definition
•Diuretics
•Non-dihydropyridine calcium channel blockers (CCBs)
•Mineralocorticoid receptor blockers
•Direct renin inhibitors
Term
Thiazide diuretics are usually ineffective when the creatinine is . . .
Definition
>2mg/dl; consider using a loop diuretic in such cases.
Term
Non-dihydropyridine CCBs (e.g., verapamil, diltiazem), especially in combination with an ACE inhibitor or an ARB, are . . .
Definition
effective in reducing proteinuria in the hypertensive patient with proteinuria.
Term
Data suggest worse CKD progression in patients with systolic blood pressures . . .
Definition
below 110 mm Hg, so over-treatment of blood pressure should be avoided.
Term
once the GFR falls below 30 ml/min/1.73m2, a ________ is typically needed to treat fluid retention
Definition
loop diuretic (thiazides will be ineffective)
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