Free 120 Flashcards

1
Q

Sickle Cell Lab values

A
  1. decrease Haptoglobin = intravascular hemolysis (responsible for preventing iron loss and renal damage – acts as an antioxidant)
  2. Increased LDH = intravascular hemolysis
  3. Increase unconjugated bilirubin = pigmented gallstones
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2
Q

1-LP

2-LD b add V

3 is E

4 gets more

A

1-LP = AR type 1 Familial dyslipid-Chylomicron
decrease LPL (cofactor ApoC2) = increased TG = pancreatitis

2-LD b add V = AD type 2 Familial dyslipid-Cholesterol
decrease LDL receptors
b type = increased VLDL
increased cholesterol = xanthomas but in the achilles tendon
Atherosclerosis
corneal arcus

3 is E = AR type 3 Familial dyslipid-Lipoprotein
decrease ApoE = increase remnants in blood
increased cholesterol = xanthomas but in the palms

4 gets more
increased VLDL = increased TG = pancreatitis

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3
Q

TP equation

A

1-a = CI

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4
Q

FP

A

a = significants or probability of making a type 1 error

increase a level = increase statistical significance = more likely to make a type 1 error

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5
Q

TP

A

1-b = power

increase w/ sample size = decrease likelihood of making a type 2 error

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6
Q

MI =

A

decrease CO = increase EDV

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7
Q

Most common cause of viral meningitis in all age groups

A

Enteroviruses =
1. echoviruses
2. coxsackieviruses

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8
Q

reflex functions to maintain blood flow during changes in position (standing, supine, seated)

A

Baro + Stretch receptors = increase in Vagal stimulation

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9
Q

accessory spleens = which origin

A

a thickening of the dorsal mesogastrium

occurs due to an incomplete fusion of mesenchymal buds

spleen initially forms near the urogenital ridge

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10
Q

bilateral parotid gland swelling

fever

malaise

decreased appetite

A

Mumps

Transmission:
1. airborne droplets
2. contaminated saliva
3. respiratory secretions

Disseminates
1. Parotid glands then
2. lacrimal, thyroid, mammary glands, ovaries, testes, pancreas and/or central nervous system

invasion (e.g., facial nerve compression and palsy), systemic signs (e.g., weight loss, fatigue

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11
Q

chronic myelogenous leukemia phil chromosome =

A

a non-receptor tyrosine kinase that has enhanced enzymatic activity =

  1. inhibition of apoptosis
  2. increased baseline mitotic activity
  3. recombination of chromosomal regions between nonhomologous chromosome
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12
Q

Portal triad

A
  1. hepatic artery
  2. Common Bile duct
  3. Portal vein
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13
Q

Pringle maneuver

A

compression of Hepatoduodenal ligament

control bleeding from hepatic inflow source

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14
Q

Infusion rate =

A

Clearance x Steady state concentration

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15
Q

Paracentric chromosomal inversions

A

two breaks in one chromosome to create an intervening segment

If a crossover event occurs within the loop formed, two disproportionate chromosomal segments are produced

a fetus is conceived with either of these two formed chromosomes = at risk for early spontaneous abortions

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16
Q

Amphetamines cause these symptoms via

A

increased synaptic release

inhibited reuptake of biogenic amines (epinephrine, norepinephrine, serotonin, and dopamine)

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17
Q

Major basic protein

A

is an eosinophilic protein = host defense against parasites

It is produced in response to IgE antibody-dependent cell-mediated cytotoxicity

Release leads to destruction of pathogens via cytotoxic mechanisms as well as the release of
1. histamine from mast cells + basophils
2. recruitment of neutrophils + macrophages

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18
Q

Keratosis pilaris (KP)

A

keratinized hair follicles that are most commonly found on the extensor surfaces of the arms and thighs

nonpruritic and nonpainful erythematous bumps

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19
Q

absolute polycythemia

A

appropriate increase in RBC mass due to increased EPO stimulation from chronic oxygen desaturation

ex: OSA

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20
Q

lack of cardiac neural crest cell development

A

improper spiraling of the aorticopulmonary septum = persistent truncus arteriosus

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21
Q

cystic artery is a terminal branch of the

A

right hepatic artery

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22
Q

2 weeks of a generalized prodromal symptom complex, including
1. fever
2. exudative pharyngitis
3. tachycardia
4. hypotension
5. diffuse lymphadenopathy
6. Pancytopenia = anemia + leukopenia + thrombocytopenia

A

HIV

a mononucleosis-like syndrome

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23
Q

exposure to naphthylamine (an antioxidant in the rubber industry)

A

urothelial (transitional cell) carcinoma

most common malignancy of the bladder, ureter, and renal pelvis

painless hematuria throughout micturition & flank pain

24
Q

Adolescent F

Chest Pain post fever
SOB
Friction rub

A

Coxsackievirus B infection can cause pleurodynia (Bornholm’s disease, Devil’s grip)

fever + flu-like symptoms + painful spasms of the chest and upper abdominal quadrants due to pleural and muscular irritation

Dx = viral culture or PCR and serological testing

pericarditis w/ the development of a pleural friction rub

25
ACEi effects to kidney
Increase RBF = decreased blood pressure due to decreased vasoconstrictive effects of ATII decrease GFR decrease PCT pressure
26
ambiguous genitalia increased 17-hydroxyprogesterone 46, XX karyotype
21-hydroxylase deficiency = congenital adrenal hyperplasia
27
ambiguous genitalia HTN 46, XX karyotype
11b-hydroxylase deficiency
28
Factor V Leiden
Mutation where Protein C can't do its job --> clots more common than Protein C deficiency tx: tPA
29
When will you see deficiency in Protein S
Prego OCPs
30
Increase in Va & VIIIa post warfarin
Tranisently at the start of warfarin tx pt are at a hypercoagualative state due to a decrease in Protein C/S
31
recurrent episodes of muscle weakness that typically develop after certain triggers 1.strenuous exercise (e.g., football) 2. alcohol ingestion 3. dietary changes 4. medication use 5. stress
autosomal dominant disorder mutations in sodium and calcium channel genes = intracellular shifting of serum K+ --> muscular paralysis/weakness
32
symptomatic syringomyelia, we should screen for
TRAUMA
33
Tanner Stage 1
no hair flat chest raised nipple
34
Tanner Stage 2
8+ Pubarche = pubic hair BOYS: testicular enlargement GIRLS: Thelarche = breast buds mount forms
35
Tanner Stage 3
12+ Coarsen pubic hair Increase penis size/length Breast enlarges
36
Tanner Stage 4
Spares thigh Penis width/glands increase Breast enlarges areola, mound on mound
37
Tanner Stage 5
hair on thigh penis + testis enlarge breast contour areola flattens
38
Biopsy reveals diffuse epidermal keratinocyte necrosis with minimal lymphocytic infiltration in the dermis
Stevens-Johnson syndrome (SJS) toxic epidermal necrolysis (TEN)
39
Jarisch-Herxheimer rxn
acute, systemic rxn response (shock sx) to release of bacterial endotoxin-like substance release after initiation of abx spirochete infections 1. Borrelia = Lyme 2. Treponema 3. Leptospira
40
veins within the portal venous system
1. left gastric --> esophageal 2. paraumbilical --> small gastric 3. superior rectal --> middle/inferior rectal 4. Splenic IVC is outside PLEASE DO NOT GET THIS WRONG AGAIN
41
A major risk factor for bone loss and the development of osteoporosis is
1. Smoking 2. malabsorption 3. malnutrition 4. anorexia 5. Rx = anticonvulsants + corticosteroids + PPIs + anticoagulants
42
In a kid knee pain (referred) reduced hip range of motion on IR + abduction + flexion anterior hip tenderness
slipped capital femoral epiphysis (SCFE) risk factor = obesity
43
postpartum thyroiditis
follicular cell damage with lymphocytic infiltration, leading to the release of preformed thyroid hormone
44
Hamartomatous polyps
Sx: 1. mild anemia 2. occult blood in his stool Dx: Biopsy normal findings for location on histopathologic analysis 1. smooth muscle hyperplasia (bands of light pink cells) 2. glandular hypertrophy w/o distorted architecture Association: 1. Juvenile polyposis syndrome 2. Peutz-Jeghers syndrome 3. Cowden syndrome
45
Hyperplasia of glands = serrated appearance on microscopy left colon = rectosigmoid
Hyperplastic polyps
46
neoplastic proliferation of glands
Adenomatous polyps
47
Osteoid osteoma
Cortex of long bones (femur) resolves w/ aspirin radiolucent core (osteoid)
48
Osteoblastoma
arises in vertebra DOES NOT respond to aspirin
49
Osteochondroma
EXT1/2 mutation Cartilage cap affects growth plate (metaphysis)
50
Osteosarcoma
associations: Rb + Pagets + radiation exposure Destructive mass = sunburst appearance + lifting periosteum (Codman triangle)
51
Giant cell tumor
multinucleated giant cells + stromal cells epiphysis of long bones soap bubble appearance
52
Ewing Sarcoma
poorly differentiated neuroectoderm (PNET) Onion skin appearance small, round blue cells = resemble lymphocytes (PAS+) 11;22 translocation
53
Chondroma
radiodense core medulla of small bones of hands + feet
54
Chondrosarcoma
medulla = pelvis or central skeleton Cartilage-forming tumor
55
Incomplete penetrances
Trait or condition is SOMETIMES produced Ex: mainly found in autosomal dominant disorders i.e.: Rb + Osteogenesis imperfecta + BRAC1