Mehl. pulmo inf.: bact tracheitis, pertussis, hot tub lung (11-04) (1)

Question 1

Bacterial tracheitis. how to diagnose?

Answer 1

Dx of exlusion on usmle

Question 2

Bacterial tracheitis. Cause? what previous disease?

Answer 2

cause by s. aureus following a viral URTI

Question 3

Cause by s. aureus following a viral URTI?

Answer 3

Bacterial tracheitis.

Question 4

Bacterial tracheitis. what important CP?

Answer 4

can fully open the mouth without difficulty

in peritonsillar abscess/Quinsy - cannot open

Question 5

Shows up on 2CK form as patient with recent viral URTI who now has
stridor (suggesting upper airway narrowing) + no drooling (suggests
against epiglottitis) + can fully open the mouth without difficulty (suggest against peritonsillar abscess/Quinsy) + does not improve with racemic epinephrine (suggests against croup).

Dx?

Answer 5

Bacterial tracheitis.

Question 6

Bacterial tracheitis.
Being able to open the mouth without difficulty is important because
this contrasts with peritonsillar abscess, where the patient has difficulty fully opening the mouth.

Answer 6

.

Question 7

Pertussis. Classic whooping cough?

Answer 7

Classic whooping cough presents as succession of many coughs followed by an inspiratory stridor.

Question 8

Pertussis.

What you need to know for USMLE is that this can absolutely present in
an adult and that they can be vague about it, just describing it as a
regular cough. The way you’ll know it’s pertussis, however, is they will
say there’s either HYPOGLYCEMIA or POST-TUSSIVE EMESIS, which means
vomiting after coughing episodes.

Answer 8

.

Question 9

Pertussis. in adults, vague cought. what 2 distubances says its pertussis?

Answer 9

Hypoglucemia

Post-tussive emesis

Question 10

Pertussis. WBC?

Answer 10

super-high, 30-50k., lymphocytes >80 proc.

This resembles ALL.

Question 11

Pertussis. resembles what hematology?

Answer 11

ALL.

Question 12

super-high, 30-50k., lymphocytes >80 proc.

This resembles ALL.
Dx?

Answer 12

Pertussis.

Question 13

Pertussis. what CP formula suggest?

Answer 13

ALL-like labs + cough = pertussis

Question 14

Pertussis. Nr 1 for prevention?

Answer 14

vaccination

Question 15

Pertussis. part of what vaccine?

Answer 15

TDaP.

Question 16

Pertussis. part in vaccine is what?

Answer 16

killed acellular

tetanus and diphteria - toxoid.

Question 17

Pertussis. what ab can be given?

Answer 17

Erythromycin can be given to patients with active cough;

USMLE
doesn’t give a fuck about pertussis stages.

Question 18

Pertussis. what to give to close contacts?

Answer 18

Close contacts should also receive erythromycin.

Question 19

Hot tub lung. adults. Case?

Answer 19

on 2 CK guy moves into a new apartment building with hot tub and gets bilateral infection –> inhalation of fumes with mycobacterium avium complex (MAC).

Question 20

Hot tub lung. Mo?

Answer 20

inhalation of fumes with mycobacterium avium complex (MAC).