GU Flashcards
GU radiology guidance - use what 1st?
1L - U/S (cant detect scars however)
2L - VCUG (voiding cysourethrogram - reflux/urethra)
3L - CT/MRI - kidney structure/Fx
4L - Radionuclide studies (Kidney size, scars, Fx)
UTI occurs MC in what pop?
Girls
Boys if uncircumcised
S/S of neonate w/ UTI?
FTT, fever, feeding problems (No localizing S/S)
S/S of 1mo-2yo w/ UTI?
FTT, Fever, feeding problem, - N/V/D
S/S of >2yo w/ UTI?
Classic S/S
- Urgency/frequency
- Dysuria
- ABD pain or Back pain
Suspect UTI in all?
Infants/children w/ unexplained fever OR congenital urinary anomalies
UTI Dx requires what?
> 50k CFU and pyuria = infant/young
100k CFU and pyuria = Older/Adolescents
AND
UA - leukocyte esterase AND nitrite
Best way to collect UA in PEDs?
Transurethral cath
GOLD standard of UA Cx results for Dx?
> 50k CFU + pyuria - cath specimen
100k CFU (older/adolescent PEDs)
1-50k CFU if suprapubic tap (RPT Cx otherwise)
TXT of UTI?
PO Abx - Older PEDs and not Ill w/ POS UA Cx
Parenteral Abx - Toxic/dehydrated
Duration of Parenteral Abx for TXT of UTI?
Neonates - 10-14d
Older - 7-14d
When should F/U be made for UTI after initiation of Abx?
2d - assess improvement or not - REEVAL if not
When is RAD warranted for assessment of UTI?
Renal/Bladder U/S for
- ALL boys w/ UTI
- Girls depending on severity
IF U/S is ABNL what is next step of care?
VCUG (voiding cystourethogram)
Purpose of VCUG?
Eval recurrent UTI - despite NL U/S
Visualize for +- vesicoureteral reflux
Likelihood of VUR being present depends on?
The younger the pt the more likely
What is VUR?
Retrograde flow from bladder up to ureter or kidney
Causes of VUR?
Congenital (UVJ) Ureterovesical Jx incompetence Outlet Obstruction (acquired or cystitis)
VUR is classified how?
Graded on how far reflux reached GU
I – Ureter only
II – Ureter, pelvis, calyx - NO Dilation
III – U/P/C - Mild/Mod Dil/Tortuosity - (Slt blunt fornices)
IV – U/P/C - Mod Dil/Toruosity - (Fornice angles gone - but maintains papillary impressions)
V – U/P/C - gross dilation/toruosity w/ fornice angles gone and papillary impression loss)
VUR mgmt?
Grade I/II - resolves w/out surgery
High grade VUR or recurrent UTI = Prph Abx
What procedure is used to correct VUR?
Dextranomer/hyaluronic acid copolymer (Mild/mod)
Controversial
Complications of VUR?
HTN
CKD
Nephrotic syndrome attributes?
NO BLOOD in urine Heavy proteinuria (ALB mostly) >2g/24h (UA up) HO-proteinemia (Blood down) HYP-Cholesterolemia Edema
What lab/cell marker ass/w nephrotic syndrome?
HLA
Nephrotic syndrome pathophys?
Increased GFR permeability > Proteins leak out - (Increased UA/ decreased blood) > Reduced plasma oncotic pressure > Fluid to interstitial spaces > Decreased volume in BVs activates RAAS > Increases NaCl reabsorption AND Hypoproteinemia increases hepatic lipoprotein synth > Liver makes ALB and Lipids > Hypercholesterolemia
Nephrotic syndrome classified how?
Primary
Secondary
Types of primary nephrotic syndrome?
(MCNS) - Minimal change Nephrotic syndrome
(FSGS) - Focal segmental glomerulosclerosis
Membranoproliferative Glomerulonephritis
Idiopathic membranous nephropathy
MC form of Nephrotic syndrome?
MCNS
MCNS presents as?
No hematuria
Renal insufficiency
HTN
HO-Complementemia (NOT C3 tho)
Which primary Nephrotic syndrome is ass/w persistence/renal failure over time?
Membranoproliferative Glomerulonephritis
Which primary Nephrotic syndrome is ass/w systemic infections in adolescents/children?
Idiopathic membranous nephropathy
Standout 2ndy Nephrotic syndrome causes?
SLE
HSP
DM
Nephrotic syndrome presents as?
Sudden onset - pitting edema or ascites (MC)
Anorexia, Malaise, Abd pain
HTN > Decline in ALB and Volume > HOTN
Diarrhea
Respiratory distress - (Pulm edema or Pleural effusion)
MC S/S of Nephrotic syndrome?
Sudden onset - pitting edema or ascites
Dx of Nephrotic syndrome?
2-3 random UA - w/ 2+ protein on each
UA protein/creatinine ratio >0.2 1st AM UA
>2 nephrotic range proteinuria
Low blood - protein/albumin
24h UA protein >50
Fasting cholesterol - still HYP-cholesterol/lipid
HO-complement C3 (Not w/ MCNS)
What Rads are indicated for Nephrotic syndrome?
Renal Bx (not if MCNS) Renal U/S
TXT of MCNS?
Prednisone w/out renal Bx (12w)
Edema - Salt restriction - Loop diuretics
HTN - BB or CCB - ACEI if refract HTN
Immunosupressives - refract Nephrotic syndrome
TXT of all other primary Nephrotic syndrome?
Renal Bx 1st > CCS (prednisones
Edema - Salt restric/loop diuretics
HTN - BB/CCB/ACEI (refract)
Immunosuppresives - refract Nephrotic syndrome
Cardinal features of Glomerulonephritis
BLOOD in urine Oliguria Proteinuria HTN Edema Renal insufficiency
Types of Glomerulonephritis?
IgA nephropathy (Bergers disease)
Hereditary Nephritis (Alport syndrome)
Post-Streptococcal Glomerulonephritis
Rapidly progressive Glomerulonephritis
MC type of CHRONIC Glomerulonephritis?
IgA nephropathy (Bergers disease)
Which Glomerulonephritis has greatest risk of ESRD?
IgA nephropathy (Bergers disease)
IgA nephropathy is AKA?
Bergers disease
MC type of ACUTE Glomerulonephritis?
Post-Streptococcal Glomerulonephritis
Features of IgA nephropathy (Bergers disease)?
Acute GN
Asymptomatic hematuria
Recurrent gross hematuriaw/ URI
What levels of C3 complement is ass/w IgA nephropathy (Bergers disease)?
Normal C3 levels
Definitive Dx of IgA nephropathy (Bergers disease)?
Renal Bx - rarely needed
Hereditary Nephritis is AKA?
Alport syndrome
What is Hereditary Nephritis genetic etiology?
X-chromosome mutation affecting type IV collagen >
ABNL glomerular basement membrane
Hereditary Nephritis affects what gender the worse?
Males (Renal failure, Sensorineural hearing loss)
Female = benign
When does Post-Streptococcal Glomerulonephritis begin?
5-21d s/p streptococcal pharyngitis infection
4-6w post impetigo
TXT of Post-Streptococcal Glomerulonephritis?
Supportive - salt diet, diuretics, anti-HTN
Abx
Post-Streptococcal Glomerulonephritis outcome?
Benign
Rapidly progressive Glomerulonephritis complication?
Quick renal insufficiency > ESRD
Dx Rapidly progressive Glomerulonephritis?
Renal Bx - Glomerular epithelial cells proliferation w/ crescents
Hemolytic Uremic Syndrome is?
Glomerulovascular injury due to toxin/infection
Triad of HUS?
Microangiopathic hemolytic anemia
Thrombocytopenia
Renal injury
MC type of HUS?
Prodromal diarrheal illness from contaminated food/water
MC type of organism causing HUS?
E. Coli O157:H7
- others - Shigella, other E.coli
HUS presents as?
Hemolytic anemia Enterocolitis + bloody stools Weak/lethargic/Irritable/pallor Oliguria 7-10d later Petechiae Dehydration or Volume overload (HTN) \+- seizures, Cardiac dysfx, Colonic perforation
HUS TXT?
Support - HTN control
+- dialysis, Trxf
Should you TXT HUS (organism) w/ Abx or antidiarrheal agents?
No!
Abx - killing bacteria releases toxins
Antidiarrheal - keeps organism inside body longer
Types of congenital kidney ABNLs?
Polycystic Kidney Disease
Horseshoe Kidney
Renal agenesis
Congenital Polycystic Kidney Disease is due to?
Gene mutations AutoDom or AutoRec > cystic dysfx kidneys
MC inherited kidney disease is?
AD Polycystic Kidney Disease
Which Polycystic Kidney Disease gene/structure is affected?
AD = Polycystin 1 or 2 defects AR = Fibrocystin defects
Which Polycystic Kidney Disease genetic etiology is ass/w early childhood vs middle adult?
Childhood = AR Polycystic Kidney Disease Adult = AD Polycystic Kidney Disease
AR Polycystic Kidney Disease attributes?
Bilateral renal enlargement
KF early in childhood
Hepatic fibrosis > portal HTN
Interstitial fibrosis > tubular atrophy
AR Polycystic Kidney Disease is ass/w what other S/S complications?
Flank masses
Hepatomegaly
PTX
Protein or blood in urine
Horseshoe kidneys are ass/w what genetic d/o?
Turners
How does Horseshoe kidneys affect the pt?
Asymptomatic - even though fused together - still fx
Renal agenesis is AKA?
Renal aplasia
2 types of Renal agenesis?
Unilateral
Bilateral
Unilateral Renal agenesis is ass/w what population?
DM or AA
Unilateral Renal agenesis is ass/w what other complications?
VUR
Turners syndrome
VACTRL
Bilateral Renal agenesis is ass/w what complication?
- Insufficent lung development > respiratory distress
AND
Potter syndrome
Potter syndrome is ass/w what disease?
Renal agenesis
Potter syndrome has what triad of S/S?
Flat facies
Clubfoot
Pulmonary hypoplasia
Types of Scrotal/Testicular ABNLs?
Testicular torsion
Cryptorchidism
Hydrocele
Typical Testicular torsion Hx?
Sudden onset - intense unilateral pain
Triggered by sudden movement/sports
N/V
What deformity might be present w/ Testicular torsion?
Bell-clapper deformity - testicle not anchored posteriorly so it can move freely w/in the scrotom.
PE for Testicular torsion will present?
High riding testicle
TTP, Edema
Absent cremasteric reflex -
Negative Prehns sign - No relief if testicle raised
DDx of Testicular torsion?
Epididymo-orchitis - Positve Prehn sign, no edema/red
Apendiceal torsion - blue dot on top of scrotom
Incarcerated inguinal hernia - Hernia/ w/ Valsalva
– bowel sounds over swelling (hernia)
Testicular torsion mgmt?
Immediate testicular U/S doppler
Refer to urology
Detorsion/Fixation of testis w/in 6hr to save
Cryptorchidism is?
Undescended testes
Cryptorchidism is MC in what population?
Premature infants
Complications ass/w Cryptorchidism?
Testicular cancer
Infertility
Mgmt of Cryptorchidism?
Not descended after 1yo = refer
Orchidopexy at 2yo if still not descended
Hydrocele is?
Fluid collection in tunic vaginalis
Hydrocele is MC in what population?
Neonates
Hydrocele is classified as?
Communicating - Ass/w peritoneal space
OR
Non-Communicating
Dx hydrocele w/?
Transillumination
TXT for Communicating Hydrocele?
Urology refer for surgical correction
MC type of Hydrocele?
Non-Communicating
Mgmt of non-communicating Hydrocele?
Resolves w/in 12mo > if not Refer by 18mo
Communicating Hydrocele attributes?
Smallest in AM
Enlarges during the day
Ass/w inguinal hernia
Types of penile ABNLs?
Hypospadias
Enuresis
Hypospadias is ass/w what other conditions?
Cryptorchidism
Inguinal hernias
Hypospadias mgmt?
Urology surgical correction before 18mo old
What should ne considered during the mgmt of Hypospadias?
NO circumcision - foreskin may be needed for repair
What is Enuresis?
Urinary incontinence in a child adequately mature
Types of enuresis?
Diurnal vs nocturnal enuresis
Primary - never achieved dryness
vs
Secondary - dry at least 6mo
Which classifications of Enuresis is ass/w
- Organic etiology (UTI, DM, DI, Chronic constipation)
2ndy Diurnal/Nocturnal enuresis
Enuresis TXT?
1L - txt underlying organic causes
2L - Enuresis Alarm
3L - Rx - desmopressin