10/6/21 Bonus

Question 1

A 12-lead electrocardiogram in patients with HCM reveals

Answer 1

deep, narrow Q waves in the inferolateral leads

tall R waves in leads V1–V2

large amplitude QRS complexes

Question 2

___________ is sudden death that occurs when an object hits the chest at a high rate of speed.

Answer 2

Commotio cordis

Question 3

STEMI is defined by

Answer 3

ST segment elevation of:
--- 1 mm in the inferior leads
--- 2 mm in the precordial leads,
or
---- 0.5 mm depression in leads V1 and V2 for a posterior myocardial infarction.

Question 4

What is the most important laboratory study in the evaluation of CSF for shunt infection?

Answer 4

CSF culture.

CSF white blood cell count, protein, glucose, and even gram stain on their own cannot reliably diagnose or exclude shunt infection.

Question 5

What electrolyte abnormality can cause hemodynamic instability during massive transfusion protocol?

Answer 5

Hypocalcemia.

Calcium levels can drop precipitously during transfusion secondary to the citrate present in packed red blood cells.

Question 6

At what threshold would a patient with HIV be considered to have a positive tuberculin skin test?

Answer 6

Greater than 5 mm induration.

Question 7

What bone is fractured in the presence of CSF rhinorrhea?

Answer 7

The ethmoid bone.

Question 8

Penetrating Neck Trauma Hard signs

Answer 8

expanding hematoma
diminished pulse
paralysis
hemorrhage
stroke

Question 9

What kind of medicine is glyburide?

Answer 9

long-acting sulfonylurea

Question 10

High-quality chest compressions CO2 level

Answer 10

10–20 mm Hg CO2

Question 11

Ischemic Stroke Anterior cerebral artery

Answer 11

frontal lobe dysfunction, apraxia, contralateral paralysis (lower > upper)

Question 12

Ischemic Stroke Middle cerebral artery

Answer 12

contralateral paralysis (upper > lower), aphasia

Question 13

What are the three most common sources of infection leading to delirium in the elderly?

Answer 13

Pulmonary (pneumonia), urinary tract, and dermatologic.

Question 14

Takayasu Arteritis

Answer 14

Large vessel vasculitis affecting aorta and its major branches
Patient will be a young woman (80–90%) of Asian descent
Presents with fever, malaise, arthralgia, claudication
PE: decreased pulses, bruits, asymmetric BP readings
Dx: angiogram
Tx: high-dose prednisone

Question 15

What important ventilator setting needs to be adjusted during post-intubation care of an asthmatic patient?

Answer 15

The inspiratory:expiratory ratio needs to be adjusted to allow for increased expiratory time; for instance, an I:E ratio of 1:3 or 1:4 would be approp

Question 16

What is the definition of a fusion beat?

Answer 16

A supraventricular and a ventricular impulse coincide to produce a hybrid complex called a fusion beat. Indicates 2 foci of pacemaker cells firing spontaneously.