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Surgery > Subs 1/5/2016 > Flashcards

Subs 1/5/2016 Flashcards

1
Q

is growth plate on metacarpals and phalanges proximal or distal

A

metacarpal - distal

phalanges - proximal

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2
Q

carpal bones

A

so long to pinkie here comes the thumb
scaphoid lunate triquetrum pisiform
hamate captate trapezoid trapezium

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3
Q

peds uro probs of urethra

A

posterior urethral valves

hypospadias/epispadias

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4
Q

peds uro probs of bladder

A

hematuria

(non-glomerular

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5
Q

peds uro probs of ureters

A

ureteropelvic junction obstruction
ureterovesicular junction obstruciton
ectopic ureter
vesicoureteral reflux

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6
Q

peds uro probs of kidney

A

malignancy (e.g. wilm’s)

glomerular hematuria

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7
Q

microscopic hematuria
define
dx
manage in peds

A

rbc’s on UA but not grossly visualize
usually self-limiting in kids so watch and wait… if persists probably congenital defect… surgery?
if blunt trauma - CT scan

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8
Q

macroscopic hematuria
define
dx
manage in peds

A

grossly visualized
dysmorphic rbc’s or rbc casts - glomerular - u/a kidney bx
normal rbc’s no casts - non-glomerular - us, cystoscopy, ct/mri depending on pretest probability…

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9
Q

modes of kidney imaging for peds and use

A 
US - hydronephrosis (obstruction, refux in peds)
VCUG voiding cystourethrogram - reflux (eg diff reflux from obstruction in cause of hydronephrosis on us... essentially injecting dye from urethra to bladder then have kid pee... if contrast in ureters... reflux), also diverticula, big abnorms
CT - w iv con for trauma (assess leaks), w/o iv con for stones (want to see radioopaque stones)
cystoscopy - intraluminal lesions
intravenous pyelogram (never used... basically just a little less definition than CT w contrast)
renal bx eg to diff type of glomerular dz after u microsc showed dysmorphic rbc's or rbc casts
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10
Q 
posterior urethral valves
path
pres
dx
tx
A

excess tissue blocks urine leaving bladder thru urethra
neonate no urine output, distended bladder
wwo oligohydramnios (low amnionic fl) hydronephrosis if prenatal care)
cr high or normal as mom can clear
us hydro, vcug ro reflux, cath massive output
cath temp, surg perm

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11
Q 
hypo / epispadiad
path
pres
dx
tx
A

hypourethral opening ventral
epi urethral opening dorsal peeing in face
neonate by exam or child out of diapers
clinical dx
use foreskin to surg reconstruct urethral opening by out of diapers, SO DONT CIRCUMSIZE

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12
Q 
uteropelvic junction obstruction / uterovesicular jo
path
pres
dx
tx
A

urinary pelvis outlet vs ureter bladder junction congenitally narrow, presents as infant or suffices when urinary flow normal
till teen binges alcohol (or challenges buddy to gatorade contest), inc u ouput, colicky andominal pain, spontaneously resolved
us hydro (kidney only for upjo, ureter and kidney for uvjo), vcug ro reflux (more important in uvjo), remal scintigraphy (radionucleotide scan)
surgery, maybe stent

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13
Q 
ectopic ureter
path
pres
dx
tx
A

one normal ureter, one implants low
5 yo girl (out of diapers time) w normal u function.. bladder fills, urge to pee (one normal ureter) but constant leak never dry (ectopic ureter below urethral sphincter, maybe in vagina, no control, similar to fistula)
boys asymptomatic as implant above urethral sphincter
us no hydro, vcug no reflux, radionucleotide scan (positron emitting nucleotide tagged to metabolically active pharmaceutical of choice) to id affected kidney and quantitatively compare function to other side…
surg reimplant ureter

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14
Q 
vesiculoureteral reflux
path
pres
dx
tx
A 
retrograde flow bladder to ureters
us hydro if approp prenatal care, recurrent uti's or pyelo wo prenatal care
us hydro, vcug reflux
abx if minor and may outgrow
surg if otherwise
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15
Q

microscopic hematuria in setting of flank trauma

imaging to get

A

ct w iv con

to eval for kidney inj

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16
Q

intravenous pyelogram
define
use

A

like an angiogram of the gu system
substance injected iv that moves thru kidney and gu system
look for blockage, duplication, anatomic variants
not really used mich anymore as ct w iv con usually better

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17
Q

most common use for vcug voiding cystourethrogram

A

kids w uti’s

evals for vesico ureteral reflux

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18
Q

tf

us useful for asdessing solid organs for injury

A

f

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19
Q 
polydipsia
polyphagia
polyuria
weight loss
think...
A

diabetes milletus

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20
Q

what are you looking for on renal bx in peds

A 
iga nephropathy (post febrile illness)
post strep glomerulonephritis
minimal change dz
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21
Q

kid with urti and 2+ proteinuria… next step in mgmt…

A

repeat u/a 1 wk
if still proteinuria… 24hr u protein

nasal renal think wegener’s
urti kidney dz think rheumatic fever
but mild sx start conservatively…
(med ed q)

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22
Q

painless hematuria suggests…

A

malignancy or anatomical defect

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23
Q

painless hematuria
palpable flank mass
think…

A

cancer
wilm’s tumor
renal cell carcinoma
neuroblastoma

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24
Q

painless hematuria
flank mass
peds
think…

A

wilm’s tumor (nephroblastoma)
most common primary malignancy of childhood
age 2-5 usually

can think neuroblastoma if 1yo and ab mass crosses midline

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25
Q 
wilm's tumor
aka
pres
dx
prog
A

nephroblastoma
painless hematuria, flank mass, in child age 2-5 usually (most common primary malignancy in childhood)
htn and fever possible too, making difficult to diff from inflammatory
u/a hematuria
us
ct to assess for distant mets
good prognosis if caught early

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26
Q 
painless hematuria
flank pain
flank mass
adult
think...
A

rcc
renal cell carcinoma
renal cancer of adulthood
classically elderly smoker

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27
Q

colicky ab pain w hematuria think…

A

nephrolithiasis

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28
Q

presentation of pyelonephritis

A 
urgency
frequency
dysuria
cva tenderness
bacteria and wbc casts on ua
maybe blood too but wbc's predominate
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29
Q

presentation of psgn

post strep glomerulonephritis

A

hematuria
proteinuria
htn
edema

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30
Q

tf

surgical correction of hypo / epispadias is a surgical emergency

A

f
no real need until out of diapers, so can wait to perform till newborn is more stable to endure surgery, but should still be done sooner rather than later (eg well before toilet training)
just delay circumcision till after foreskin can be used for reconstruction

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31
Q

cryptorchidism
define
tx
compx

A

undescended testis
orchiopexy (surgically move testicle into scrotum and tack it down) by age 6-18mos
testicular cancer a risk despite orchiopexy, so teach pubertal and post-pubertal monthly self exams
(sexual function and puberty maintained by other testicle and with orchiopexy)

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32
Q

tf

the risk of testicular cancer remains the same after orchiopexy for cryptorchidism

A

t

so teach pubertal and post-pubertal self exams

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33
Q

differentiate
varicocele
hydrocele
inguinal hernia

A

bag of worms
transilluminates
extends to inguinal ring

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34
Q

swelling of testis ddx

A

acute
torsion
orchiitis
both meed emergent surg referral

chronic
hydrocele (transilluminates)
testicular cancer (does not transilluminate)

35
Q

swelling of epididymis ddx

A

epididymitis - tender, acute, swollen

spermatocele - non-tender, stable size, nodular

36
Q

swelling of scrotal skin ddx

A

sebaceous cyst
skin cancer
infection

37
Q

scrotal swelling ddx

A

skin - sebaceous cyst, skin cancer, skin
infection
cord - inguinal hernia, varicocele, spermatocele
epididymis - epididymitis, spermatocele
testis - torsion, orchitis, testicular cancer

38
Q

child w recurrent uti’s

suspect. ..
dx. ..

A

reflux (vesicoureteral)

us (shows nothing) then vcug voiding cystourethrogram

39
Q

tf

bacteria in urine equals uti

A

f
can be asymptomatic bacteruria
only treat if pregnant or in context of urethral surgery

40
Q

to what age cam wetting the bed still be considered “normal development”

A

age 7

41
Q

neonate w/o urine output and ele cr and hx of mild oligohydramnios, next step?

A

in out cath
anytime suspect obstruction
(suspect posterior urethral valves here)

us reasonable but most places delayed as must be ordered so do in out cath at bedside (or us AT BEDSIDE)

42
Q

urine sodium study to help dx kidney disease

A

FeNa v1% indicates prerenal

43
Q 
prostate ca
path
pres
dx
tx
fu
A

5dht (testosterone)
70yo M (usually die WITH not from, but big deal for those it does affect) asymptomatic screens not recc anymore unless 1st deg relative w prostate ca
obstructive urinary sx
firm nodular prostate on dre
psa ele, 10-12 transrectal bxs (ca nearer periphery) preferred to transurethral
gleason score by adding worst 2 bxs (higher score more like undifferentiated adenocarcinoma)
resection = radiation = brachytherapy == some kind of semisurgical removal
then gnrh analogue (leuprolide)
or antiandrogen (flutamide) to suppress sx
orchiectomy if refractory (delete testisterone.. eg in old guy using penis for urination only)
fu w psa, if ele wo sx tx w antiandrogens, if ele w sx tx w radiation to zap away mets

44
Q

over 40
frank hematuria
painless
must work up for…

A

bladder ca

45
Q

bladder ca
path
pres

A 
transitional cell carcinoma
smoking or beta alanine dye exposure
painless hematuria
plus minus obstructive sx
us IF obstructive
then cystoscopy and bx
transurethral resection, followed by bcg therapy (bacillus calmette-guerin, a live attenuated mycobacterium bovis, don't know why works) or chemo (cisplatin)
cystectomy if ca invasive
46
Q 
testicular ca
path
pres
dx
tx
fu
A

germ line carcinoma
young male 18-35 painless mass does not transilluminate
us
DONT FNA BX will just seed tract
serum tumor markeds (ldh afp b-hcg not diagnostic, but to track tx and recovery) - then orchiectomy - then path
seminoma - chemo rad, usually cisplatin, track w ldh
non-seminoma
endodermal sinus tumor (yolk sac) track w afp
choriocarcinoma track w b-hcg
teratoma (malignant in men, benign in women) look for mets

47
Q

rcc renal cell ca
pres
dx
tx

A

flank pain hematuria palpable flank mass (classic triad but few real pts meet all 3…)
maybe erythrocytosis as kidney makes epo, or anemia if cancer steals blood
ct scan, DONT FNA BX (if obviously cancer… if small cystic want to ro ca can fna)
just resect

48
Q 
suspect rcc (flank pain, flank mass, hematuria, mass on ct)
ct guided biopsy or unilateral nephrectomy?
A

unilateral nephrectomy
(per online meded)

ct bx complicated by bleeds often… nephrectomy serves dx and tx… can bx if eg only one kidney, poor surgical candidate, to bx mets…

49
Q

uti sx without uti
and painless hematuria
think…

A

bladder ca

50
Q

tf

urine cytology is sensitive for bladder

A

f
sn is poor
do a cystoscopy

51
Q

define glaucoma

A

optic neuropathy

traditionally associated with inc intraocular pressure but not necessarily always

52
Q 
closed angle glaucoma
path
pres
dx
tx
A

-inc intraocular pressure with pupil dilation… causes optic neuropathy… a medical emergency
eg dilation w low light (movie), constricted iris presses against lens, dec outflow of posterior chamber, inc pressure, baloons iris out so anterior angle closes off too, blocking trabecular meshwork to canal of schlemm so aqueous really can’t get out, inc inc pressure,
-pain headache rigid irritated eyeball, dilated nonreactive pupil because mechanically can’t constrict against pressure
-dx clinical and/or measure intraocular pressure
-tx constrict (produce miosis) w drops - activate alpha (2), block beta, laser peripheral iridotomy to drain thru hole
NEVER ATROPINE - anticholinergic, dilates/mydriasis, worsens glaucoma

53
Q

(peri)orbital cellulitis
pres
dx
tx

A

inlammation in eye region…
can they move eye? eomi?
if yes, peri - abx for skin fluora (staph, strep)
if no, orbital - ct scan to look for abscess, extent
incision and drainage, f/u DM/DKA/mucor – amphotericin if positive, abx for normal skin fluora if not (ceftri and vanc…)

54
Q 
corneal abrasion
path
pres
dx
tx
A

something scratches cornea
eg job where goggles should be worn
painful red tearing
irrigate much (prelim tx before dx!)
fluorescien dye under blue light (slit lamp) to visualize abrasions
sx if extensive, otherwise expect spontaneous healing after irrigation, maybe ppx antibiotics while allow to heal…

55
Q 
retinal detachment
path
pres
dx
tx
A

trauma (mva) or htn crisis (high pressure pops retina off)
“floaters” - mild detachment
“curtain coming over vision” - severe
(constant… if comes and goes think amaurosis fugax - impending retinal artery occlusion… like tia for eye)
fundoscopic exam - can see detachment… retinal distortion and folding…
spot-weld back on w laser

56
Q 
retinal artery occlusion
path
pres
dx
tx
A

eye stroke (vs amaurosis fugax = eye tia)
acute unilateral painless vision loss
(for bilateral, both retinal arteries would have to be occluded simultaneously…)
no fnd’s (diffs retinal artery occlusion from occipital stroke)
CHERRY RED SPOT ON FOVEA - think retinal artery occlusion
clinical dx
tx intra arterial tPA, hyperventilate/apply global pressure to try to dilate and move clot more distally for less vision loss as temporizing measure

57
Q

cherry red spot on fovea think…

A

retinal artery occlusion
tPA, hyperventilate/apply global pressure to try to dilate and move clot more distally for less vision loss as temporizing measure

58
Q 
cataract
path
pres
dx
tx
A

age, dm
chroinc progressive vision loss, night time vision loss, “white thing” in anterior chamber
clinical dx
resect

59
Q

white thing in anterior eye chamber think…

A

cataract

60
Q 
macular degeneration
path
pres
dx
tx
A

80% dry (atrophic), small % progress to wet
20% wet (neurovascular / exudative)
chronic progressive loss of central vision
clinical dx
blood/fluid/exudate w wet
pigment change / drusen (yellowish subretinal extracellular material deposits)
no good existing tx for dry… nutrition supplements and clinical trials…
for wet - nutrition supplements, intravitreal VEGFinhibitor injection, thermal laser photocoagulation, photodynamic therapy – all effort to thrombose neovascular tissue…

61
Q

macula
fovea

define

A

macula is pigmented (yellowish to absorb excess blue and uv light light natural sunglasses) center of retina, w structures specialized for high-acuity vision such as the….

fovea at center of macula, high conc cones for central high-resolution color vision in good light

62
Q

how to constrict pupil pharmacologically

A 
activate alpha (2)
block beta

eye drop form

63
Q

what is a “cloud” settling at the top of pts vision in setting of retinal detachement

A

blood settling at bottom of retina

64
Q

how does fluorescein dye visualize corneal abrasions

A

dyes exposed basement membrane

65
Q

most common bug in adult pink eye

A

adenovirus

66
Q

prevent shingles

A

Zostavax vaccine for adults who had chicken pox as kid

varicella vaccine to prevent children from ever getting chicken pox

67
Q

presentation of neisseria gonorrhea conjunctivitis

A

purulent conjunctivitis, can lead to blindness

neonate day 2-5 from mom w gonorrhea

68
Q

presentation of chlamydia conjunctivitis

A

purulent conjunctivitis, can lead to systemic dz, eg pna

neonate day 7-14 from mom w chlamydia

69
Q

presentation of gonorrhea vs chlamydia conjunctivitis

A

both purulent conjunctivitis
gon neonate day 2-5 can lead to blindness
chlam neonate day 7-14 can lead to systemic dz like pna

70
Q

tf

fever and leukocytosis w (peri)oribital cellulitis

A

t

71
Q

chalazion

A

noninfectious obstruction of an eyelid gland

“stye”

72
Q

fever or leukocytosis w chalazion?

A

no

noninfectious obstruction of an eyelid gland
“stye”

73
Q

hordeolum

A

infectious obstruction of eyelid hair follicle

looks like chalazion but will rupture w pus after 1-2 days

74
Q

tf

fever and leukocytosis w hordeolum

A

f
infectious obstruction of eyelid hair follicle
looks like chalazion but will rupture w pus after 1-2 days
no fev leuk

75
Q

dacrocystitis

A

a stye/chalazeon (noninfectious blockage) of the lacrimal duct (superomedial eyelid) … maybe red and tender but no fev leuk

76
Q

tf

fev leuk w glaucoma

A

f

fev leuk w eye sx start thinking (peri)orbital cellulitis…

77
Q

tf

orbital cellulitis can peresent w nonreactive dilated pupil

A

t
infection can affect cranial nerves eg produce pupillary afferent defect
expect swollen erythematous hot systemic signs of infection (fev leuk) too

78
Q 
amblyopia
path
pres
dx
tx
A

cortical blindness (brain pathway does not develop or degenerates)
child w strabismus or cataracts
dx clinical
no tx
so ppx by correcting precpitating dz (strabismus, cataracts)

79
Q

strabismus
presentation
dx
tx

A

lazy eye - light shined at eyes does not reflect back from same positions on eyes
clinical dx
tx surgery within 6 mos (to avoid cortical blindness amblyopia) for congenital,
patch good eye for acquired…

80
Q 
congenital cataract
path
pres
dx
tx
A 
TORCH infection if present at birth
galactosemia (sorbital pathway...) or other metabolic dysreg if not present at birth
cloudy front of eye
clinical dx - can see it
resect
81
Q 
retinoblastoma
path
pres
dx
tx
A

Rb gene
all white retina (no red reflex when light shined in eye)
clincal dx
surgery (remove eye?) DON’T radiate, may provide second hit to other eye and tumor and removal of that eye too
f/u osteosarcoma peripuberty

82
Q 
retinopathy of prematurity
path
pres
dx
tx
A 
premie gets inc FiO2 for immature lungs
causes growths on retina..
clincal dx
laser ablation of growths
f/u
bronchopulmonary dyslplasia w cont FiO2
intraventricular hemorrhage w us
necrotizing enterocolitis (bloody bm) put npo
83
Q

5 types of neonatal conjunctivitis
onset
discharge
tx

A
  • chemical (silver nitrate… was hoped to reduce chlamydial conjunctivits… it doesn/t), v24hr, bilateral non-purulent discharge, don’t give silver nitrate, ppx gonorrheal and chlamydial w topical erythromycin
  • gonorhea, 2-7days, bilateral purulent, ppx w topical erythromycin, tx w ceftriaxone, cx on chocolate agar and get pcr (destroys eye, fast blindness)
  • chlamydia, 5-14 days, unilateral mucoid progress to bilateral purulent, tx w oral erythromycin, cx and pcr, f/u systemic infection eg pna
  • hsv herpes… acyclovir
  • other bacterial, 5-14 days, treat as if gonorrhea (can cause rapid blindness) w ceftri, change abx when get cx and sensitivities
84
Q

white thing in newborn back of the eye
vs
white thing in newborn front of the eye

A

rb

cataract

Surgery (22 decks)

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