Exam Stuff

Question 1

How do you work out the weight of a child?

Answer 1

(Age +4) x 2

Question 2

How many ml of air is required to inflate a cuffed ET in adults?

Answer 2

10ml

Question 3

Endotracheal tube inner diameter paeds formula?

Answer 3

(for all children >1 year) =
(Age/4) + 4 mm

(for Croup or subglottic stenosis use 0.5 to 1 size smaller than above)

Question 4

Endotracheal tube length at lip - paeds?

Answer 4

12 + (age/2) (cm)

Question 5

Endotracheal tube length at nostril - paeds?

Answer 5

15 + age/2 (cm)

Question 6

What is seen on HOCM ECG?

Answer 6

Signs of LV hypertrophy: left axis deviation, big R waves etc.
? Inverted T waves

Question 7

What is seen on ARM ECG?

Answer 7

Epstein waves

Question 8

Confirm HOCM on echo

Answer 8

Greater than 15 mm in or more segments, non-dilatory.

Question 9

MOI magnesium?

Answer 9

Prevents calcium entry into cells -> preventing early after depolarisation -> reduces time for R on T phenomenon in torsades des points

Question 10

How do you work out the QTc interval?

Answer 10

QTc = QT/root(RxR)

Question 11

If bradycardia either has no adverse signs associated or resolves, what do you look for when assessing whether pacing is required?

Answer 11

Are they at risk or entering into asystole?

1. Complete heart block with broad QRS
2. Mobitz type II AV block
3. Recent asystole
4. Ventricular pause over 3 seconds.

Question 12

Et tube size?

Answer 12

women - 7

men - 8

Question 13

ET tube depth?

Answer 13

women - 22

men - 23

Question 14

End tidal CO2 - normal range?

Answer 14

4-5.7 kPa or

35-40mmHg

Question 15

ROSC - Utstein definition?

Answer 15

Greater than 60 mmHg for more than 10 minutes

Question 16

MAP equation?

Answer 16

DBP + 1/3 PP