Formulas And Signs

Question 1

CorPP formula

Answer 1

CorPP = DBP - PCWP

Question 2

Cardiac output formula

Answer 2

CO = Stroke volume x Rate

Question 3

Cardiac Index formula

Answer 3

CI = CO / BSA

Question 4

Coopernail sign

Answer 4

Bruising of the perinum, scrotum, or labia. Indicative of pelvic fracture / abdominal bleeding.

Question 5

Halstead’s sign

Answer 5

Marbled abdomen (bleeding)

Question 6

Bradzinski’s sign

Answer 6

Flexion of knees on neck flexion
Possible bacterial meningitis (or subarachnoid bleed)
“Chin to chest will cause knees to flex

Question 7

Minute volume formula

Answer 7

Ve = Vt x F

Question 8

ETT formula >1 year

Answer 8

(Age + 16) / 4

Question 9

Hamman’s sign

Answer 9

Tracheobronchial injury. Crunching sound heard over auscultation over anterior chest synchronized with heart beat.

Question 10

O2 adjustment at altitude

Answer 10

Fio2 x pressure at departure / pressure at altitude

Question 11

Bicarb replacement

Answer 11

Kg / 4 x base deficit = mEq of bicarb

Question 12

Chvostek’s sign

Answer 12

Spasm of the facial muscles when tapped due to hypocalcemia

Question 13

Cullen’s sign

Answer 13

Discoloration around umbilicus due to intraperitoneal hemorrhage

Question 14

Grey-Turner’s sign

Answer 14

Bruising of the flank due to retroperitoneal bleeding, (pancreatitis)

Question 15

Kernig’s sign

Answer 15

In meningitis, the inability to completely extend the leg when sitting or lying.

Question 16

Kehr’s sign

Answer 16

Referred left shoulder pain secondary to splenic injury

Question 17

McBurney’s point

Answer 17

Rebound tenderness in RLQ with deep palpitation secondary to appendicitis.

Question 18

Trousseau’s sign

Answer 18

Place BP cuff on upper arm, pump up cuff and keep inflated for 3 minutes. Hand will withdrawal and spasm due to hypocalcemia.

Question 19

Rule of 9’s for Pediatrics

Answer 19

Arm- 9%
Head and neck - 18%
Leg - 14%
Anterior trunk - 18%
Posterior trunk - 18%

Question 20

Rule of 9’s for adults

Answer 20

Arm- 9%
Head - 9%
Neck - 1%
Leg- 18%
Anterior trunk- 18%
Posterior trunk- 18%

Question 21

Parkland burn foruma

Answer 21

4 x KG x BSA % (2nd / 3rd degree only)

Question 22

Steeple sign

Answer 22

Presents on a neck x-ray, Indicative of Croup

Question 23

Thumb sign

Answer 23

Presents on a neck x-ray, indicative of Epiglottitis

Question 24

Waddel’s Triad

Answer 24

Car hits child
Child hits car
Child hits ground

Question 25

MAP formula

Answer 25

SBP + (2xDBP) / 3

Question 26

Cushing’s Triad (increased ICP)

Answer 26

Hypertension
Bradycardia
Respiratory changes
Increased pulse pressure

Question 27

Homan’s sign

Answer 27

Dorsiflexion of the foot and constriction of the calf causing pain indicative of DVT

Question 28

Virchow’s Triad (DVT)

Answer 28

Loss of vein integrity
Stasis
Hypercoagulable state

Question 29

Beck’s Triad (Tamponade)

Answer 29

Muffled heart tones
Hypovolemia with narrowed pulse pressure
JVD

Question 30

Ideal body weight

Answer 30

Males: IBW = 50 kg + 2.3 kg for each inch over 5 feet.

Females: IBW = 45.5 kg + 2.3 kg for each inch over 5 feet.