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117 Cards in this Set

  • Front
  • Back

1. What drugs cannot be used in Sulfa allergic pts



2. Which loop diuretics can be taken in Sulfa allergic pts?

1. Diuretics.



2. Ethacrynic acid

1. Pt has increased intracranial pressure. Which diuretic should be given?



2. What Rx can be given for Acute Glaucoma



3. What is the SE of mannitol

1. Mannitol



2. Mannitol, Acetazolamide



3. Dilutional hyponatremia ---> hypernatremia w/ continued use


Pulmonary edema, Hyperosmolarity

1. What are the SE of loops?


2. Nephrogenic DI, which diuretic should be given?


3. Which diuretics cause hypercalcemia

1. Ototoxicity, hypocalcemia


2. Thiazides


3. Thiazides

Which thiazide is used for cirrhosis?

metalazone

1. What abx are given for Pyelonephritis?



2. Tx for pyelonephritis in Pregnany pts?

1. Fluoroquinilones


Aminoglycosides


3rd Gen Cephalasporins (e.g. Ceftriaxone)



2. Ceftriaxone or Amp/Gent

1. UTIs are risk factor for _____ renal stones.


2. Hyperparathyroidism is a risk factor for _____ renal stone.


3. Which type makes staghorn calculi?


4. How do you treat uric acid stones

1. Struvite ---> Staghorn calculi



2. Calcium PO4 : PTH is PO4 trashing hormone



3. Struvite (more common), Cystine



4. By alkalizing urine

What are the tumors that can increase EPO?

1. Renal cell carcinoma


2. Hepatocellular carcinoma


3. Pheochromocytoma


4. Hemangioblastoma

Eosinophilia (in urine), rash, fever, granular or epithilial casts Elevated Creatinine.



a) Dx=? b) Tx=?

1. Acute interstitial nephritis/ Interstitial Nephropathy



2. Stop offending agent. Steroids

Brown urine, High ASO titer, hypercellular glomeruli,


a) Dx

Post infectious glomerularnephritis

Hematuria, flank pain, fever, Increased serum IgA.


a) Dx


b) Tx

a) IgA nephropathy (Berger's disease)



b) ACEI, statins for persistent proteinuria


Linear deposition of igG ab deposition

Goodpasture's - only one that is linear



Tx: Plasmapheresis and Corticosteroids

Cant see, cant pee, cant hear/


(Cataracts, Nephritis, hearing loss)

Alport syndrome


- defect in collagen IV in basement membrane

Proteinuria > 3g/day, hypoalbuminemia, hyperlipidemia. Dx=?

Nephrotic syndrome

Most common glomerular disease in HIV pts

Focal segmental glomerulosclerosis

Most common glomerular disease in afr american pts

Focal segmental glomerulosclerosis

Most common nephrotic syndrome in adults?

Membranous glomerulonephritis

Membranoproliferative glomerulonephritis is a/w these conditions (4):



Note: all four need not be present



What is the histological presentation

1. Hep B


2. Hep C


3. SLE


4. Subacute bacterial endocarditis



- Basement membrane thickening with double layer "train track" appearance

Kimmelstiel Wilson nodules. Basement membrane thickening on EM

Diabetic nephropathy



- Kimmelstiel Wilson nodules are on present in the nodular subtype.


Diffuse subtype does not have KW nodules

Define azotemia

Increased BUN and Cr

Granular casts. Dx =?

ATN (Acute tubular necrosis)

FeNa < 1% signifies?

Pre-renal

FeNa > 2% suggests?

Intrinsic/ATN or Post renal cause

BUN: Cr > 20 (or > 15 in some literature) is indicative of ?


Pre-renal cause


- Low urine Na (<10 meq/L (10 mmol/L))


- Low FeNa < 1%


- High urine osmolality ( >500)


Products other than Na giving high osmolality


- SG > 1.010



Proteinuria in DM. Whats the next step

24 hr urine protein level


- to check for nephropathy

Whats Uremic syndrome?

Azotemia + sx of uremia



Sx=


AMS, Peripheral neuropathy


HTN, Pericarditis


Anorexia, n/v, GI Bleeding


Brownish coloration of skin

What electrolyte disturbance is seen with Chronic kidney disease?

Hyperkalemia


Hyponatremia


Increased PO4


Decreased Ca


Anemia --> due to lack of EPO


Metabolic acidosis


Urine osmolality is similar to serum osmolality

What DM med should not be taken in pts with renal disease



Whats the HbA1c goal in pts with renal disease

1. Metformin



2. < 6.5

What are the indications for dialysis in patients with CKD?

1. Severe hyperkalemia


2. Severe metabolic acidosis


3. Fluid overload


4. Uremic syndrome


5. CKD with Cr > 12 mg/dL and BUN > 100 mg/dL


In a healthy person:


a) pH =


b) PCO2 =


c) PO2 =


d) HCO3 =

a) 7.4


b) 40


c) 100


d) 24



pH > 7.42 = Alkalosis


pH < 7.3 = Acidosis

ACID BASE PHYSIOLOGY



1. Reasons for metabolic alkalosis

1. vomiting, diuretics, Cushing syndrome, Hyperaldosteronism

1. Reasons for high anion gap metabolic acidosis

1. Methanol (MUDPILES)


2. Uremia


3. Diabetic ketoacidosis


4. Paraldehyde


5. INH, Iron toxicity


6. Lactic acidosis - a/w shock


7. Ethanol, Ethylene glycol


7. Salicylates

1. Define hypernatremia


2. What are the causes?

1. > 155



2. dehydration,


diuretics


Diabetes Insipidus


Docs (Iatrogenic w/ NS IVF)


Diarrhea (and vomiting)


Disease of the kidney (hyperaldosteronism)


In a dehydrated patient with hypernatremia, how is it corrected (what fluid choice)?

1. NS: until hemodynamically stable


1/2 NS: afterwards

1. Tx for Central DI?


2. Tx for Nephrogenic DI?

1. Desmopressin (ADH analogue)


2. Salt restriction


Increased H20


thiazide diuretics +/- Indomethicin



Tx for Li induced DI?

1. Thiazide


2. Indomethacin


3. Amiloride - effects the same channels as used by Li

1. Definition of Hyponatremia?



2. Define types of hyponatremia and their tx?


1. < 135. Tends to become problematic if < 120


2. Mild: asymptomatic. Irrespective of Na level.


No tx necessary


Moderate:


Severe: Sz


Tx: 3% hypertonic salien

What is the tx for hyperkalemia


(Name the steps)

1. Check EKG


2. D50 followed by Insulin


3. Ca-gluconate or CaCl to protect myocardium


OTHER TX:
NaHCO3, Albuterol nebulizer


Kayexalate


Lasix, consider Mg if < 2

T-wave flattening seen in ?

Hypokalemia


U-waves seen in

hypokalemia


Tall peaked T-waves seen in

Hyperkalemia

Shortened QT interval

Hypercalcemia



- Hypocalcemia prolongs QT interval

1. Tx of hepatorenal syndrome


2. What keeps the efferent arterioles open



3. What rx dilates the efferent arterioles


4. At what Cr would you stop ACEI?

1. Fix the underlying liver condition. BUN:Cr similar to pre-renal causes



2. Prostaglandins



3. ACEI --> good to give in patients with renal issues


4. Never

1. MCC of pseudohyponatremia?


2. How do you tx it?

1. Elevated serum glucose


- For every increase by 100 in glucose there is drop of 1.6 of Na



2. Fixed the elevated glucose

What is the mechanism behind DI


a) Neurogenic


b) Nephrogenic

a) Failure to secrete ADH by the post. pituitary



b) No response to ADH by the kidneys

Psychogenic DI Nephrogenic DI


a) Na level?


b)Urine osm.


c)Urine Na


d) Nocturia

Psychogenic DI Nephrogenic DI


a) Na level? Low High


b)Urine osm. Low Low


c)Urine Na Low Low


d) Nocturia + ++++



Nocturia goes away in psychogenic

Define SIADH

Urine osm > Serum osm in the presence of hyponatremia

Tx for cystitis

3 days of Fluoroquinolones or TMP-SMX


- Amoxicillin requires longer tx

UTI in pregnancy. Tx =?

1. Amoxicillin, Ampicillin, Cefalaxin, Nitrofuratin

1. Most common bladder cancer?



2. Most common cause of squamous cell cancer in the bladder?

1. Transitional cell carcinoma



2. Schistosoma Hematobium - in the developing world

Treatment of bladder cancer?

Transurethral cytoscopic resection

Tx of urethritis

Single dose Erythromycin



or



Single dose ceftriaxone with doxycycline



* Treat sexual partners also

Tx for prostatitis?

Sx:Perineal pain, dysuria, tender prostate



Sexually active: Ceftriaxone + Doxycycline


Otherwise: TMP-SMX


Most common surgical therapy for BPH?

TURP: Transuretheral resection of the prostate

Tx of BPH

Non selective alpha-blockers: -zosins


- if patient also has HTN



Selective alpha-1 blockers: Tamsulosin (Flomax)


- No anti-HTN effects



5-aplha reductase inhibitors: e.g. Finasteride


- reduces dihydrotestosterone levels

Most common cancer in men

Prostate cancer


Frequency: Prostate > Lung > Colorectal



Mortality: Lung > Prostate > Colorectal

1. What are the prostate screening guidelines?



2. Metastasis from prostate cancer is osteo___

1. All men > 40 yrs ==> annual DRE


Baseline PSA at age 40



2. Osteoblastic

Sudden acute testicular pain, testicle raised and in a horizontal position. Pain not relieved by supporting the testicle.



a) Dx =?


b) Tx = ?

a) Testicular torsion


- Often a/w physical activity



b) Tx = Surgical detorsion with bilateral orchiopexy with in 6 hours

1. MC germ cell tumor


2. Germ cell tumor with elevated AFP?

1. Seminoma


2. Choriocarcinoma

Most common obstructive uretheral lesion in infants and newborn

Posterior uretheral valves

1. At what age can enuresis be diagnosed?



2. At what age do you give treatment?

1. 5 years


2. 7 yo -


First - Behavior therapy - Enuresis alarm


2nd line - Imipramine

The total urine protein excretion rate is usually less than __ g/24 h

1

_______ refers to protein excretion that increases during the day but decreases to a normal value (<50 mg/8 h) during recumbency.

Orthostatic proteinuria

_____ is the most common form of intrarenal disease that causes acute kidney injury in hospitalized patients and shows ________ casts.

Acute tubular necrosis (ATN)



Muddy brown casts

_____ is characterized by acute kidney injury, sterile pyuria, and leukocyte casts.

AIN - Acute interstitial nephritis


- Drugs, particularly β-lactam antibiotics, are the most common etiology of AIN.


- Patients may also have fever, rash, and eosinophilia, although only a minority of patients will have all three features.

Define Acute Kidney Injury

- an increase in the serum Cr level of ≥0.3 mg/dL over 48 hours,


- an increase in Cr of ≥50%, or


- urine output <0.5 mL/kg/h for >6 hours.

Define Chronic kidney disease

- Chronic kidney disease (CKD) is defined by an estimated GFR <60 mL/min/1.73 m2 OR


- kidney damage (abnormal findings on urinalysis, kidney imaging, or kidney biopsy) of at least 3 months' duration.

Define persistent hematuria?

- presence of >= 3 erythrocytes/hpf in the urine detected on two or more samples

Pt with 20 yr smoking history presents with persistent hematuria. Whats the next step?

Kidney U/S and Cystoscopy

The triad of muscle pain, weakness, and dark urine. Most likely dx =?

Rhabdomyloysis


- A positive urine dipstick for blood in the absence of erythrocytes also suggests rhabdomyolysis


- history of predisposing factors (such as prolonged immobilization or drug toxicity) and confirmed by the presence of myoglobinuria, an increased serum CK level, and, in some cases, hyperkalemia


- consider rhabdo when CK > 5000 U/L in pts who demonstrate heme positivity on urine dipstick testing in the absence of hematuria.

AKI, Thrombocytopenia, Microangiopathic hemolytic anemia. Dx=?

HUS

What are the two MCC of HUS?

1. Shiga toxin–producingEscherichia coli (E. coli O157:H7 and other serotypes)


2. familial deficiency of factor H


- Factor H, a protein in the complement pathway, normally protects cells from damage by the alternative complement pathway. A deficiency of factor H allows C3 to potentiate autoantibody-mediated or immune complex–mediated injury to glomerular cells, leading to exposure of subendothelium and activation of both platelets and coagulation

1. Tumor lysis syndrome may manifest as (3):



2. What's the treatment

1. hyperkalemia, hyperphosphatemia, and hyperuricemia.



2. Tx = Rasburicase

1. What fluids do you give for pre renal azotemia?

1. Normal saline

Tx of choice in uremia in stage V kidney disease

Kidney transplantation


- Transplantation in patients who have not yet been treated with hemodialysis is associated with better patient and allograft outcomes.

Diabetic nephropathy is also a/w with ____

Diabetic retinopathy


- Diabetic nephropathy often is accompanied by diabetic retinopathy, particularly in type 1 diabetes. In patients with type 2 diabetes, the presence of retinopathy strongly suggests coexisting diabetic nephropathy.

What is the Winter's formula?

The adequacy of respiratory compensation can be checked using Winter formula:



Winter formula:


Expected Pco2 = (1.5 × [HCO3] + 8) ± 2 = 24 ± 2



If the measured Pco2 is elevated for the degree of metabolic acidosis, the diagnosis of respiratory acidosis is established

What is the formula for corrected HCO3

Corrected [HCO3] = measured [HCO3] + (measured anion gap – 12)

What 5 question should be considered when approaching an acid-base problem

* Is the patient acidemic or alkalemic?
* Is the acid-base disorder primarily metabolic or respiratory?
* Is there an anion gap?
* If a metabolic acidosis exists, is there an appropriate respiratory compensation?
* If an anion gap acidemia is present, is there an additional complicating metabolic disturbance?

What is the normal anion gap

12 ± 2 meq/L



Kaplan: 8-12

1. What are the two causes of Normal anion gap metabolic acidosis?



2. How are they distinguished

1. kidney or extrarenal disease


2. By measuring the:


Urine anion gap = (urine [Na] + urine [K]) – [urine Cl]



Normal = 30-50 mEq/L


Extrarenal (usually GI) origin: Large -ve Urine anion gap


Renal: +ve urine anion gap

The most common renal cause of Normal anion gap metabolic acidosis =

Renal tubular acidosis

What is the predicted increase in HCO3 in Respiratory acidosis?



a) acute


b) chronic

Acute: 1 meq/L (1 mmol/L) for each 10 mm Hg (1.3 kPa) increase in Pco2



Chronic: 4 meq/L (4 mmol/L) for each 10 mm Hg (1.3 kPa) increase in Pco2

In acute respiratory alkalosis, for each 10 mm Hg decline in Pco2 the expected decline in serum HCO3 is _____

2 meq/L

Diuretic-induced hyponatremia most commonly occurs in patients taking________ diuretics

thiazide



Tx =


Mildly symptomatic = NS


Severely Symptomatic = 3% saline

diuretics are largely ineffective in individuals with an estimated glomerular filtration rate below 30 mL/min/1.73 m2

Thiazide

In a patient with hypokalemia, a urine potassium concentration of less than ____ meq/L (mmol/L) is suggestive of extrarenal losses, whereas a concentration higher than this value is suggestive of kidney losses.

20

Laxative abuse causes ____kalemia and _______osis

hypokalemia


metabolic acidosis



- Diarrhea leads to fecal potassium wastage and is associated with a normal anion gap acidosis due to increased gastrointestinal loss of bicarbonate

Whats the indication for Cinacalcet, a parathyroid calcium-sensing receptor, leading to decreased release of parathyroid hormone?

Secondary and Tertiary hyperparathyroidism

The MCC of hypercalcemia in the outpatient setting is:

Hyperparathyroidism

Patients with chronic alcoholism may have normal serum _____ levels on admission to the hospital but may develop severe ______ over the first 12 to 24 hours.



Sx include: confusion, rhabdomyolysis, hemolytic anemia, and severe muscle weakness that can lead to respiratory failure

phosphorus, hypophosphatemia



Often due to IV glucose administration, which stimulates insulin release and causes phosphate to shift into cells.

Diabetic patient with R flank pain and high fever. CVA tenderness, WBC casts, CT shows air in Right renal parenchyma

Emphysematous pyelonephritis


- usually due to gram -ve like E. Coli


- tx includes surgical drainage and abx

Pt with acute bacterial prostatitis. Exam shows distended bladder. Whats the next step?

Placement of a suprapubic catheter



- Uretheral catheterization is contraindicated due to risk of sepsis

The major signs of _____ include liver or spleen damage (splenomegaly), low red blood cell counts (anemia), low blood platelet counts, and bone problems (osteolytic lesions).


Histology reveals large histocytes with cytoplasms engorged with glycolipid.

Gaucher disease


- deficiency in glucocerebrocidase


- tx --> imiglucirase

1. Initial approach in a patient who has unexplained recurrent kidney stones



2. what is the tx?

1. 24h urine with a corresponding blood sample


- to measure Ca, citrate, oxalate and creatinine



2. Thiazide diuretics


- cause reabsorption of filtered Ca.


- Goal of therapy is to reduce calciuria.

Choice of IV fluid in hypernatremic hypovolemia?

NS

What is the pathophysiology of


a) Type I renal tubular acidosis


b) what is the urine pH


c) Clinical features


d) Treatment


e) Causes

a) No distal tubular acid secretion


b) > 5.3


- Only type with > 5.3 pH


c) Renal stones , low K+


d) Oral HCO3, K+, Thiazides


e) Amphotericin, light chains in MM, chronic infection

What is the pathophysiology of


a) Type II renal tubular acidosis


b) what is the urine pH


c) Clinical features


d) Treatment


e) Causes

a) No proximal tubular HCO3 reabsorption


b) < 5.3


c) Low K+, Low HCO3-, Lytic bone lesions


d) Thiazides, oral HCO3


e) Carbonic anhydrase inhibitors (MCC), primary hyperparathyroidism, drugs (aminoglycoside), Fanconi syndrome

What is the pathophysiology of


a) Type IV renal tubular acidosis


b) what is the urine pH


c) Clinical features


d) Treatment


e) Causes

a) Aldosterone deficiency - Primary or Secondary


b) < 5.3


c) High K+ - only type with high K+


d) Fludrocortisone, K+ restriction


e) Aldosterone deficiency, DM, Interstitial disease, excess spirinolactone


Prominent U Waves are present in ______

hypokalemia

The first EKG finding of hyperkalemia is _____

Tall, peaked T-waves



- as the hyperkalemia worsens, there is


P-wave flattening


prolongation of the PR interval


Widening of QRS


Shortening of QT segment

In post-streptococcal glomerulonephritis, hematuria develops ______ after the primary infection

1-2 weeks

Cause of IgA nephropathy is usually _______ (bacterial or viral)

Viral


- Asymptomatic (gross) Hematuria 1-2 days after upper respiratory tract infection or GI infection is a common presentation of IgA nephropathy



Pts with proteinuria due to glomerular disease should be given ____ to reduce proteinuria and HTN

ACEI or ARBs

Uniform and diffuse effacement of foot processes is seen in ______

MCD

High CK, positive Blood on urine dipstick with no RBCs. dx?

Myoglobinuria from rhabdomyolysis


- Ethanol abuse cause hypophosphatemia and hyperkalemia - both can cause rhabdomyolysis


______ can be given for alkalization of urine

Potassium citrate


- given in hyperurecemic pts who have uric acid stones

_____ kidney stones are a/w UTI

Struvite (MgNH4PO4)

_______ presents with spasms of pain, usually unilateral, often radiating to the groin.

Renal colic


- tx with NSAIDS and IV hydration

1. Hyperphosphatemia is considered significant when values reach > _____ mg/dl



2. What are oral PO4 binders used in the tx of hyperphosphatemia?

1. 1. 5 mg/dl


2. CaCO3, Calcium acetate

______ is a complication of EPO therapy for the tx of anemia due to chronic renal failure

HTN - develops suddenly at initiation of therapy

Tx of Choice to prevent contrast induced nephropathy

IV hydration with NS

Pts with sickle cell disease most commonly have this renal condition?

papillary necrosis

1. U/S of testes reveals homogenous, hypo echoic mass



1. seminoma

Name cancers involved with the following tumor markers:


a) CA-125 (3)


b) CA-19-9


c) PSA


d) S-100

a) ovarian, endometrial, pancreatic


b) Pancreatic and GI malignancies


c) Prostate diseases


d) Melanoma

What is the normal anion gap?

5-15

RTA - Type 2:


a) What is the pathophysiology



b) Clinical features?



c) Serum K levels?


d) Dx?


e) Tx?

a) No prox tubular bicarb absorption


b) Osteomalacia/Rickets


c) Low K+


d) HCO3 load test (level remains low)


e) Volume restriction


Also, High dose HCO3 and/or thiazide

Nephrocalcinosis and nephrothiliasis is a feature of RTA type _____

RTA Type I