nbme 8 Flashcards
25 M non radiating chest pain smoked cocaine 30 min ago Hemodynamically stable EKG - 4mm STEMI V1-V4 Start nitroglycerine and?
Aspirin
NOT clopi
2 mo M
going to the beach for 2 weeks
Advise avoidance of sun advise what other protective measure?
Use of protective clothing
NOT sunscreen, contraindicated in kids under 6 mo
37 F increasing mentral pain x 1 yr regular 28 day cycles uterue is soft, tender, consistent with 8 week gestation and no adnexal masses Dx?
Adenomyosis
67 F Preop consult for lung surgery SOB climbing 1 flight of stairs x 4mo MI complicated by DVT 2 years ago 40 py hx FEV1 25% of predicted Venous u/s consistent with chronic DVTs Stress test - no reversible ischemia EF 40% Significant contraindication for surgery?
Pre-op eval:
- Cardio- goldmans EF < 35% MI in last 6 months
- Resp- PFT-
- Liver- Childs Pugh
- Nutrition- Prealbumin
- Metabolic- Diabetes DKA
PFTs
Gold’s criteria
52 M fever x 3 days fatigue weakness x 2 months Diffuse LN, palpable spleen HCT 26% WBC 22K, 25% lymph PLT 68K What is the mechanism of his illness?
Proliferatin of hematopoietic progenitor cells
NOT failure of pluripotent stem cells, EBV, BM fibrosis
87 M problems w/ memory x 6 months misplaces house keys, forgets items on grocery list no neuro findings MSE - aox3, 3 item recall intact Dx?
Normal aging
42 M SOB x 3 wks Breath sounds decrease over L hemithorax CXR - LUL mass Bx - uniform small round cells w/ darkly staining nuclei Tx?
Chemotherapy
Small cell - chemo
For lung masses, if they are large enough resect. Not likely to do radiation on the lung
9 M
recurrent cough x 4 months
Teachers say he is disruptive in class
Blinks frequently, facial grimacing, clears his throat frequently
Mom comments he started doing this 3 years ago and doesn’t do it all the time
Dx?
Tourette disorder
37 F irregular heavy vaginal bleeding x 6 months LMP 3 wks BMI 32 Uterus NL size, no adnexal masses TSH, prolactin WNL Next step?
Endometrial bx
NOT OCP’s, dx is still unclear
32 M
Severe throbbing HA x 3 months
6-12 hr, n/v, photophobia
Most appropriate prophylaxis?
Propanolol
7 Mpain and itching of the R ear x 2 days
Forward flexion of pinna = severe pain
Ear canal = erythematous, TM cannot be seen d/t purulent discharge in the ear canal
Next step?
Top abx
22 F nausea, diarrhea x 2 days T bili - 3.2 Indirect bili - 2.8 Why does she have hyper bili?
Deficiency of serum glucoronosyltransferase
52 M severe constant back pain while bowling 220/120, 102 Femoral pulses decreased WBC - 13.5K Pain does not resolve with SL nitro Does improve with IV morphine, lobetalol Dx?
Thoracoabdominal aortic dissection
37 F
12 days s/p orthotopic liver transplant d/t HBV
WBC - 8.5k, 75% PMNs
Alk Phos - 432
AST - 306
bx - mononuclear infiltrate w/ a significant number of eos in the hepatic triads
Dx?
Allograft rejection
9 F strange behavior x 6 mo taps feet 3 times when she has bad thoughts turns lights on and off habitually Tx?
Sertaline (SSRI)
19 M tonic clonic seizure x 20 min excessive thirst, urination x 6 months Na - 121 Sr Osmo - 250 Ur Osmo - 50 Dx?
Psychogenic polydipsia
57 F severe diarrhea x 6 d dx'd with diverticulitis x 2 wks levofloxacin x 10 days Why diarrhea?
Toxin-induced inflammation of the colonic mucosa
52 F T1DM painless lesion on foot x 1 wk No ankle reflexes, sensation to pain and touch absent to the knee How did this happen?
Abn pressure distribution caused by sensory neuropathy
37 F PMH - asthmas 40 py smoking hx Meds - NSAIDs, inhaled isoetharine, OCPs BMI 22 Best recommendation to prevent a stroke?
D/c OCP’s
F >35 w/ smoking hx
37 F bloody discharge from L breast x 2 mo bloody dc can be expressed from the L nipple Mammo - WNL Dx?
Intraductal papilloma
37 F
intermittent pens and needles in R hand x 6 months
resolve after shaking her hand
Becoming more frequent
Pain, temp decreased over R thumb, index, middle fingers
Next step?
Use of wrist splint
Study demonstrates a 50% reducting in fx with drug X vs placebo. Which piece of data are they referring to?
Relative risk reduction
NOT absolute risk reduction
72 M DOE x 6 mo 96 p yr hx, coal miner digital clubbing SPO2 88% CXR - b/l upper lobe masses and areas of consolidation Dx?
Pneumoconiosis
77M
PPD > 15 mm
CXR - WNL
Next step
Tuberculosis:
PPD
AFB+ RIPE
AFB- CXR+ Isoniazid B6
Isoniazid, vitamin B6
72 M Leg weakness x 2 months Dry mouth, constipation, hand tingling Receiving radiation for lung cancer b/l ptosis that worsens w/ upward gaze He can rise from a chair with his arms folded DTRs absent, sensation is intact What test would establish Dx?
Repetitive nerve stimulation (Lambert Eatton)
27 M
Unable to see x 3 hrs
Went to the ER for auditory hallucinations and was given haloperidol
Reg meds - IM fluphenazine q3wks
afebrile, UE held rigidly, neck is rigid, eyes are rotated and fixed superiorly
What is the cause ofh is visual problems?
Adverse effects of haloperidol
27 M CMV - HBV Ab - HCV Ab - Toxo - What vax's should they get?
Influenza virus
23 pneumo vax
HBV
32 F
1 yr hx of LL abd cramps 2-3 wkly
BM relieves the pain
Dx?
IBS
72 F 6wks s/p L MCA infarction frequent dribbling Palpable mass in suprapubic area Why incontinent?
Flaccid neurogenic bladder
25 F to discuss risk of Alzheimer’s
strongest predispoosing fact?
FHx
72 F
COPD, worsening SOB x 3 mo
Why?
constriction of vessels in the lungs
42 F BMI 39 Alk Phos - 110 AST - 84 ALT - 69 Dx?
NASH
37 M chest pain x 1 day URI 1 wk ago febrile 2/6 crescendo-descrendo at LSB Troponin I < 0.04 Dx?
Dilated myocarditis—> Cardiomyopathy
Echo
37 F SOB x 2 days now occuring at rest rad/chemo for breast cnacer 75/48, 140 SBP decreaes 15mmHg with deep inspiration Crackles at lung bases CXR - cardiomegaly Dx?
Cardiac tamponade
Hypotension, JVD, Pulsus paradoxus
62 M
Undergoing TKR
Does he need prophylactic abx?
Parenteral cefazolin
29 F becomes agitated while on vent Ventilator- high pressure alarm hypotensive, tachy Breasth sounds diminished Dx?
Barotrauma- PTX
Needle decompression
23 M fever, malaise, HA x 5 days Febrile nonpruitic, painless, pigmented, maculopapular rash over the palms and soles How to prevent?
Syphilis
Use condoms bro
27 M cough, sob x 2 months weight loss HBV dx 3 years ago white plaques on buccal mucosa What should he be tested for?
HIV/AIDs
weight loss and thrush suspicious especially in a pt with a hx of HBV
25 M Weakness of both legs, urinary retnetion x 6 hours Fever, midthoracic back pain x 2 days febrile TTP on spinous process T1DM Next step?
MRI of thoracolumbar spine
52 M chest heaviness, L arm pain x 1 hr occured while lifting blocks CK - 130 Myoglobin, trop elevated EKG - PR intervals get longer until QRS is dropped Dx?
Second degree AV block
72 M vomitting/diarrhea x 3 days PMH a fib controlled with dig hypotensive abd exam - distention, diffuse TTP w/ guarding WBC - 20K Surgery finds black omentum What caused this?
Arterial emboli
from his a fib
3 F coughing, SOB x 30 min hx of eczema Unvax coughing, drooling, difficulty speaking 90% sat RA edema of the face, hands retractions, stridor, expiratory wheezes CXR - subglottic narrowing Next step?
IM epi
42 F
difficulty urinating x 6 mo
sudden urge to void but can only void a small volume
unable to reach a bothroom quickly enough sometimes
PMH - MS
No postvoid residual volume
Dx?
Detrusor hyperactivity
NOT MS neuropathy
47 M pins and needles, weakness in R leg 1 hour after confusion scuba diving earlier today Diffuse lung crackles S4 gallop 2/6 systolic ejection murmur over LSB strength 4/5 Dx?
Pulmonary barotrauma
Air embolism (Bends)
12 M
PMH - Marfan
found a new murmur
3/6 late systolic murmur following a click
Fainter w/ shorter duration with squatting
Dx?
MVP
A study selects pts 55-75 in New york. What is problematic for their conclusion?
Selection bias
32 F
2 days s/p fixation of femoral fx
agitated, petechiae over upper thorax
Fat embolism
Study evaluates if A1C >15% predicts diabetic retinopathy. 88% of pts with A1C > 15% have DR
What does this suggest?
Positive predictive value is 88%
Study of efficacy of ELISA in dx'in pneumococcal PNA 100 PNA pts 100 asyx controls 81 of PNA and 5 asyx have positive ELISA What is the specificity
95%
3day M difficulty breathing x 1hr 64/40 UE, 36/20 LE, 160, 84 rr Pale cold extremities w/ mottling respiratory acidosis CXR - cardiomegaly, edema What caused him to crash?
Transposition great vessels: Two seperate circ. systems, PDA dependent
Pt PDA closure–> hypoxemia–> Cyanotic
Dx ECHO
Tx Prostaglandin to keep open
20 M MVA pelvic pain, crepitus Large scrotal hematoma Xray - b/l fx of the superior and inferior rami Next step?
Urethral involvement- Retrograde urethrography
Kiddo has perioral rash with honey crust
Tx?
TOP mupirocin
47 F progressive SOB, cough x 1 wk 66 py hx breathing w/ pursed lips, using accessory m. Diffuse wheezes Dx?
COPD
16 M
Organophosphate poisoning
Which receptor is most responsible?
Peripheral muscarinic receptors
32 F sever back pain raditing the outer aspect of the leg to the foot Worse with bending and pooping started after lifting her kid straight leg test + Dx?
Lumbar radiculopathy
NOT low back straing
47 F
pain in R heel worse with ambulation x 3 mo
No trauma
BMI 35
TTP on plantar surface of the heel and medial surface fo the foot
Dorsiflexion produces pain
Xray - bone spur on plantar surface of calcaneus
Dx?
Plantar fascitis
-Pain bottom of foot. Hurts morning, gets better with use.
57 M small cell carcinoma of the lung declining chemo Na+ - 128 Osmo appropriate Next step?
Fluid restrict
11month M Werdnig-Hoffman muscular atrophy sore on the back of the head x 4 days ulcerative lesion w/ a crusted base and slightly raised erythematous edge Dx?
Decubitus ulcer= pressure ulcer
37 M
chest pain x 30 min
cowrer says the guy has been crankly lately
Vitals fine
Diaphoretic, aox3, hypervigilant. Speech rapid, pressured
ST semgment elevation across precordum
dx?
Substance induced psychotic disorder
18 M n/v abd pain x 24 hr 10lb weight loss x 1 month 95/58, 118, dry RUQ tenderness Glucose - 250 ABG pH - 7.32 PCO2 - 30 PO2 - 105 Dx?
DKA
17 M stab wound at the base of his neck (L) 70/50, 140 Breath sounds diminished on L Tense pulsatile hematoma Where is the cardiovascular injury?
Subclavian a.
4 F Progressive unsteadiness x 1 month tips over, clumsy when reaching for toys normal developmental milestones height 60%, head 95% Nystagmus on lateral gaze, dysarthria gait is broad, ataxic DTR 3+ in LE Dx?
Medulloblastoma
52 F T2DM, vomiting x 24hrs AMS Na - 127 Glucose - 890 pH - 7.35 PCO2 - 37 PO2 - 100 What AMS?
Hyperosmolality
32 F
fever , swelling redness of R forearm x 2 days
noticed red streaking from forearm to elbow 6hours ago
Epitrochlear LN are enlarged
PE - warm erythematous area of edema that is TTP. Warm tender red streak extending from this area to the elbow
No ulcer, fluctuance or palpable cord
Dx?
Lymphangitis
30 F
PMH SLE
34 wks gestation
How could her dz affect her baby?
Complete AV block
17 F SOB, chest pain x 12 hours recent hospitalization for femoral fx 100/80, 90, rr 30, 88% RA CXR - pleural effusion Next step?
Fat embolism s/p ortho surg
Spiral CT scan of the chest
2 hour F
Fever
Mom received intrapartum ampicillin d/t uterine tnderness, fever, hx of HSV but no lesions at time of delivery
Next step for baby?
IV ampicillin + gentamicin
32 F fatigue, fever, red bumps, x 2 days IVDU, sex worker PE - scattered, erythematous, maculopapular rash over trunk and extremities including palms and soles general LN Perlvic exam WNL Next step?
Penicillin G benzathine
1 day M
bilious vomiting x 4 hours
Not passed meconium
sister has CF
Abd Xray - big dilated loops of bowl, no air near rectum
Barium enema - small, empty colon and multiple filling defects in distal ileum
Laparotomy - inspissated tar-like meconium removed from the ileum
How do you manage for future feedings?
Pancreatic enzyme
NOT prokinetic agent
9 M
non productive cough exacerbated by exercise, worse at night
What would be his FEV1, FVC, TLC?
Asthma
PFT:
FEV1 - decreased
FVC - WNL
TLC - increase
72 F increasing difficulty w/ vision cars have halos at night PE - yellowing of lenses, optic disc WNL Dx?
Cataracts
52 M severe retching, vomitting x 20 min after eating large meal
L hemithorax is dull to percussion
CXR - effusion on the L
Dx?
Perforation of the esophagus
32 F 27 wk gest
painless vaginal bleeding x 6 hours, new pad q2h
16 wk u/s - WNL, posterior fundal placenta
hemodynamically stable
2cm friable ulcer on the cervix
external os - 1cm. internal is closed
Dx?
Cervical cancer
NOT abortion/fetal demise, previa