NBME Questions Flashcards
What are the SIRS criteria?
2+ of the following:
- T >38 or <35
- HR >90
- RR >20 or CO2 <32
- WBC >12,000 or >10% immature forms
What is sepsis?
SIRS positive plus documented infex
What are the 7 main causes of JVD?
- RHF
- Pulmonary HTN
- Tricuspid valve stenosis
- SVC obstrux
- Constrictive pericarditis
- Cardiac tamponade
- Tension pneumothorax
Which type of fracture causes one leg to be shorter?
Femoral neck
What’s the best combo of drugs (2) for aortic dissection?
Esmolol + nitroprusside
What’s the triad of cardiac tamponade?
- Hypotension
- Muffled heart sounds
- JVD
What are the 3 types of pneumothorax?
- Closed
- Open
- Tension
What’s the tx for tension pneumothorax?
Needle decompression at 2nd intercostal space at midclavicular line
What’s the tx for hemothorax?
Tube thoracostomy
What’s the tx for open pneumothorax?
3-sided dressing and then tube thoracostomy
What’s the tx for closed pneumothorax?
Needle decompression then chest tube, unless small
What gauge needle is a large bore?
16 gauge
What’s the treatment for cardiac tamponade?
Pericardiocentesis
When do you do a FAST scan?
Unstable with abdominal pain, suspected hemoperitoneum, or cardiac tamponade
All wounds that penetrate the _______ are considered penetrating neck trauma?
Platysmus
If a stable chest trauma patient dies, suspect what?
Air embolism
What’s the immediate step for penetrating stab wounds in a hemodynamically stable patient?
CT
What are the 5 main signs of elevated ICP?
- Bradycardia
- HTN
- Respiratory depression
- Fixed, dilated pupils
- IV mannitol
Which type of brain bleed is a lens shape and is caused by the MMA, does not cross suture lines, and presents with a lucid interval?
Epidural hematoma
Which type of brain bleed crosses suture lines and is caused by damage to the bridging veins?
Subdural hematoma
What type of injury is caused by high speed motor vehicle, falls from heights?
Rapid-deceleration
What large vessel can rapid-decelerations and also scapular fractures cause damage to?
Aorta
What is it called when 3+ adjacent ribs are fractured at 2 points, causing paradoxical inward movement of the flail segment with inspiration?
Flail chest
What is Kehr’s sign (referred shoulder pain due to diaphragmatic irritation) often due to?
Splenic rupture
Should you do a FAST exam for hemodynamically unstable patients with blunt abdominal trauma?
No, go straight to laparotomy
What’s the very initial step for pelvic fracture?
External binder
What can present with blood at the urethral meatus or a high riding “ballotable,” or nonpalpable prostate?
Pelvic injury
What step should be performed before cath if a pelvic injury is suspected?
Retrograde urethrogram
Do you defibrillate with pulseless electrical activity?
No
Do you defibrillate with Vfib or pulseless Vtach?
Yes
What do you do to treat SVT if it’s unstable?
Synchronized electrical cardioversion
What do you do to treat SVT if it’s stable?
Valsalva, carotid massage, cold stimulus, or adenosinefollowed by B-blockers or Ca channel blockers
What’s the tx for Afib or Aflutter if it’s unstable?
Synchronized electrical cardioversion
What drug do you use for Afib from WPW?
Procainamide (no nodal blockers)
What’s the tx for symptomatic bradycardia?
Atropine
Which type of acute abdomen leads to diffuse, severe pain with rigidity?
Perforation
Which type of acute abdomen leads to acute onset of severe, radiating colicky pain?
Obstruction
Which type of acute abdomen presents with gradual onset of constant, ill-defined pain?
Inflammation
What should you start for all patients with suspected perforation or signs of sepsis?
Broad-spectrum abx
What is the Parkland formula for burns?
Fluids for the first 24 hours = 4x the patient’s weight in kg x % BSA
“4 sides to a park”
Note: give 50% of the fluid over the first 8 hours, then remainder
What % SA is the head for burns?
9%
What % SA is each side of the torso for burns?
18%
What % SA is each leg for burns?
18%
Is there a proven benefit for using abx or corticosteroids for 2nd & 3rd degree burns?
No, but you can use silver sulfadiazine
What is the criteria for transfer to a burn center?
- Partial or full thickness >10% BSA in patients <10 or >50
- Partial or full thickness burns >20% for other ages
- Any partial or full over face, hands, feet, genitals, perineum, major joints
- Chemical, circumferential, electrical, lightning, inhalation
- Psychosocial or rehab needs
What % SA is head?
9%
What % SA is each arm?
9%
What’s the first vital sign to change in hemorrhagic shock?
HR
Fevers before postop day 3 are unlikely to be infectious unless they are caused by which 2 bugs?
- Clostridium
2. B-hemolytic strep
Which 2 conditions are treated with dantrolene?
- NMS
2. Malignant hyperthermia
In which type of inhalation is O2 sat normal?
CO (due to the carboxyhemoglobin)
What type of shock presents with the following:
CO: decr
PCWP: decr
PVR: incr
Hypovolemic
What are the 4 main causes of hypovolemic shock?
- Blood loss
- Third spacing
- Dehydration
- Burns
What’s the tx for hypovolemic shock?
NS and blood in a 3:1 ratio
What 2 types of shock present with the following:
CO: decr
PCWP: incr
PVR: incr
- Cardiogenic
2. Obstructive
What are the 4 main causes of cardiogenic shock?
- CHF
- Arrhythmia
- Structural dz
- MI
What are the 3 main causes of obstructive shock?
- Cardiac tamponade
- Tension pneumothorax
- PE
What 2 types of shock present with the following:
CO: incr
PCWP: decr
PVR: decr
- Septic
2. Anaphylactic
How much fluid do you give in septic shock patients?
Until CVP=8