Surgery (Gsx, optho, ent) Flashcards

1
Q

Pyloric stenosis gas

A

hypochloremic hypokalemic metabolic alkalosis

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2
Q

common electrolyte derrangement in bowel obstruction

A

hypokaleia due to isotonic intravascular fluid depletion

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3
Q

Umbilical hernia management

A

no need to do surgery until school age (4-6 yrs)

if incarcerated, reduce and then repair soon

if strangulated, reduce in OR and then repair

It is recommended to repair any umbilical hernias with the defect of 1.5 cm or more in children over the age of 2 years because of minimal chance of spontaneous closure

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4
Q

Inguinal hernia management

A

refer asap - repair once stable but asap

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5
Q

US criteria for appendicitis

A

wall thickness ≥6 mm, luminal distention, lack of compressibility, a complex mass in the RLQ, or an appendicolith.

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6
Q

Omphalocele vs gastroschisis

A

Omphalocele
- awful
- sac around the abdominal contents because contents herniate into base of the cord
- often has associated anomalies (ex Beckwith Wiedeman, T13, T18, T21)
- bad baby, good gut

Gastroschisis
- typically smaller defect
- no membrane over the organs
- often isolated
- good baby, bad gut

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7
Q

Testicular torsion presentation

A

pain often is sudden in onset and may be associated with exercise or minor genital trauma, can see associated N/V, scrotum is often swollen, cremasteric reflex is often absent and the position (lie) of the testis is abnormal, and the testis position often is high in the scrotum

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8
Q

Epididymitis presentation

A

unilateral scrotal swelling and tenderness, erythema, often accompanied by a hydrocele and palpable swelling of the epididymis, associated with the history of urethral discharge

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9
Q

Diagnosis of testicular torsion

A

doppler US

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10
Q

Diagnostic test for Hirschsprung

A

Deep rectal biopsy (rectal suction biopsy)
Needs to be no closer than 2 cm above dentate line
Positive: aganglionosis

can also do contrast enemaa (only 70% sensitive)

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11
Q

Diagnostic test for diaphragm eventration

A

Dynamic US or diaphragm fluoroscopy (needs to be dynamic)

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12
Q

Timing for undescended testes surgery

A

6mo to 1 yr

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13
Q

bilious emesis in neonate

A

malrotation with volvulus

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14
Q

15 yr old sexually active male with 24 hrs low grade fever, dysuria, scrotal swelling and pain. Pyuria, microscopic hematuria. Treatment for the presumed diagnosis?

A

Epididymitis
STI
treat pt and partners with abx

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15
Q

Right sided vs left sided varicocele

A

right sided varicocele is concerning and should investigate for abdominal mass

left sided is likely due to SMA blocking the left renal vein

dull ache standing with bag of worms

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16
Q

Tubo ovarian abscess management

A

Ceftriaxone + doxycycline + metronidazole

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17
Q

Management of umbilical granuloma

A

Granulation tissue is treated by cauterization with silver nitrate, repeated at intervals of several days until the base is dry.

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18
Q

delayed umbilical cord separation

A

think leukocyte adhesion defect

normally separates within 1-2 weeks

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19
Q

Meckels diverticulum

A

Rule of 2’s:
2% of population
~2 feet from ileocecal valve
2 inches long
Presents in patients <2 50% of the time
“2 types of tissue” - usually contain ectopic mucosa

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20
Q

most common location for intuss

A

ileal colonic

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21
Q

Surgery indications for intuss

A

Indication for surgical reduction= refractory shock, suspected bowel necrosis or perforation, peritonitis, and multiple recurrences (suspected lead point)

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22
Q

2 year old girl with painless bright red blood per rectum. What test will best reveal diagnosis?

A

Meckel’s scan

Accounts for 50% of all lower GI bleeds in children younger than 2 yr of age
Painless rectal bleeding (peptic ulceration due to ectopic gastric tissue) Most are asymptomatic.

May cause perforation or peritonitis (like appendicitis). May be lead point for intussusception

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23
Q

Management G tube granulation tissue (CPS)

A

Ensure tube is secured to skin
Remove dressing

Apply warm saline compresses 3–4 times daily

If saline compresses are not effective and tissue is large, moist and friable, consider applying silver nitrate every 2–3 days until it resolves. Protect surrounding skin with a barrier cream before applying silver nitrate to avoid burning normal skin (1,15)
For balloon devices, ensure balloon is intact and appropriately inflated

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24
Q

age to start visual screening

A

3-5 yrs

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25
Q

Child with photophobia, squinting and tearing. Rt pupil bigger than left. Watery discharge and conjunctival injection of Rt eye. They are afebrile. Normal pupillary response and EOM but cornea is cloudy. What is the most likely diagnosis:

A

Glaucoma

pupil bigger
cornea opaque
blepharospasm (squinting)

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26
Q

Adenovirus ketatoconjunctivitis

A

pseudomembranse
foreign body sensation
looks like viral conjunctivitis

No specific medical therapy is available to decrease the symptoms or shorten the course of the disease. Emphasis must be placed on prevention of spread of the disease.

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27
Q

Optic neuritis presentation

A

Unilateral or bilateral visual loss over hours to days
Bilateral ON is more common in younger children and is often associated with a preceding viral infection
Unilateral ON can also be followed in time by bilateral involvement

Abnormal colour vision, visual field loss, sometimes RAPD

28
Q

Risk factors for glaucoma

A

previous cataract surgery (lens surgery can cause blockage of fluid causing increased IOP)

29
Q

when to refer AOM for ear tubes

A
  • persistent bilateral OME with hearing loss x 3 mo
  • recurrent AOM with middle ear effusion

others:
- at risk children
- complications of AOM
- OME > 3 mo with other problems (behaviour, school, vestibular)

30
Q

Problem for contact lens wearers

A

Bacterial keratitis

31
Q

most common cause of hearing loss

A

genetic

32
Q

most common acquired/congenital hearing loss

A

CMV

33
Q

hearing loss (SNHL), white forelock, heterochromic eyes

A

waardenburg syndrome
- autosomal dominant
- hirsprungs

34
Q

who should have hearing screening

A

everyone - universal hearing screening

35
Q

hearing screen techniques

A

otoacoustic emmission (level 1, misses hearing loss between 20-30dB)

automated auditory
brainstem response (AABR) (level 2, do this if at risk for hearing loss. ex CMV, VLBW)

36
Q

rhinitis treatment

A

first line management is nasal steroids (best treatment) ex. fluticasone
can also avoid allergens and try antihistamines

37
Q

AOM CPS statement pearls

A

No watch and wait approach if:
- perforated
- temp >/= 39
- <6mo
- systemically unwell
- symptoms >48hr

6mo - 2yr high dose x 10 days
>2 yr x 5 days
if perforated, drops + 10 days oral

38
Q

indications for tympanostomy tubes

A

severe pain
complicated AOM (ex. mastoiditis)
failed 2 courses abx for AOM
unilateral OME x 3 months
hearing imairment
recurrent AOM 3 in 6 mo or 4 in 12 mo)

39
Q

tube ottorhea

A

topical abx drops + steroid drops
if chronic > 6 weeks, culture and treat accordingly

40
Q

mastoiditis

A

clinical diagnosis
recommend CT temporal bone with contrast to confirm
CT with contrast to look for intracranial complication s
IV antibiotics CTX +/- vanco
myringotomy
need hearing screen after treatment

CN complications 6 (lateral rectus) and 7 (facial nerve)

41
Q

sinusitis

A

> 10 days persistent nasal draininage plus either severe symptoms, purulent discharge x 3 days, or worsening symptoms such as fever

sinus aspirate not practical
imaging not helpful

abx:
- amoxil 45mg/kg/d
- 2nd: amox-clav
7 - 10 days

42
Q

tonsillectomy indications for recurrent strep

A

> 7 episodes in 1 yr
5 episodes/yr x 2 yr
3 episodes/yr x 3 yr

43
Q

order of sinus development

A

ethmoid and maxillary present at birth
ethmoid pneumatized at birth
maxillary at 4yo
sphenoid by 5yo
frontal 7-8yo

44
Q

RPA pearls

A

typically age 3-4
won’t look up, pain, drooling

lateral neck xr: widened pre-vertebral space (more than ½ at C2 or full vertebrae at C6/7)

IV abx

45
Q

bacterial tracheitis pearls

A

will describe it as toxic appearing croup, not improving with epi neb, may have cough

usually young age <6yr

XR: candle dripping, narrow trachea

clinical dx

IV antibiotics, intubate

46
Q

epiglottitis

A

2-12 yr,unimmunized
classically h flu

rapid onset, toxic, sniffing position (head extended, looking up), drooling, no cough/no resp sx

XR thumb print sign

IV abx, intubate

47
Q

PTA

A

teenager

sore throat, hot potato voice, trismus (wont open mouth), deviated uvula, head may be tilted

no XR findings. clinical dx

drainage, abx

48
Q

congenital neck cyst

A

thyroglossal: midline, moves with tongue

Branchial: border SCM, most common, non-tender and mobile

Ultrasound
abx if infected

49
Q

dental caries bacteria

A

strep mutans

50
Q

first dentist appt

A

within 6 mo of erruption of first tooth and no later than one year of age

51
Q

conjunctivitis viral vs bacterial

A

purulent - bacterial - polysporin eye drops

watery/mucoid - viral

*if contact lens wearer, think pseudomonas

52
Q

neonatal conjunctivitis

A

first day - chemical

first week - gonorrohea
*if mom + for gonorrhea, swab baby even if asx and give 1 dose IV/IM ctx until culture back
*no longer routine use of erythromycin prophylaxis
*IV abx + topical erythro

3 weeks - chlamydia
*only swab if symptomatic
*if positive, po erythro x 2 weeks

53
Q

blurry vision/pain with foreign body sensation in contact lens wearer

A

bacterial keratitis
infection of the cornea

optho consult urgent
bactericidal abx for pseudomonas coverage (ex. tobramycin)

54
Q

pseudomembranes

A

adenoviral keratoconjunctivitis
self limited but very contagious

55
Q

dendritic lesions with fluorescein stain

A

HSV keratitis
po or topical antivirals
dont use topical steroids

56
Q

uveitis management

A

if anterior (red eye, iris adhesions, irregular pupil, decreased vision) - can tx with topical steroids

if posterior (no signs of erythema, just decreased vision) - systemic steroids

57
Q

eye finding in MS

A

optic neuritis
uni or bilateral vision loss over hours to days

58
Q

amblyopia

A

functional reduction in vision due to abnormal vision development early in life

can be due to strabusmus, refractive error, or deprivation

59
Q

strabismus

A

can be seen in babies
if persistent past 4 mo should be referred

60
Q

dacrocystitis treatment

A

IV antibiotics

61
Q

1 yr old with brown –> beige iris, large pupil, big eyes

A

glaucoma

corneal clouding, photophobia, blepharitis (twitching), tearing
due to icnreased IOP

risk after cataract surgeryc

62
Q

congenital cataracts

A

clouding of the lens (pupil) only
associated with TORCH infxn (ex. rubella), galactossemia, trisomy 13, Alport’s, diabetes

removal by 8 weeks of age

63
Q

ROP screening cut offs

A

<31 weeks or </= 1250 g

start at 31 weeks or 4 weeks of age, whichever is later

64
Q

cherry red spots

A

tay sachs

65
Q

indications for tympanostomy tubes

A

o Severe, refractory pain
o Hyperpyrexia
o Complications (facial paralysis, mastoiditis, labyrinthitis, CNS infection)
o Immune disorder
o Third line therapy for patients that have failed 2 courses of abx
o Unilateral OME with THREE months of effusion with vestibular, behavioral issues or poor school performance
o Recurrent AOM (3 in 6 mo, 4 in 12mo)
o Bilateral OME with persistence of THREE months