All the fucking numbers Flashcards
Venipuncture needle gauges
21-22 (adults)
24 (peds)
Insertion angle for venipuncture
15-30º
10-15º (butterfly)
How long after the first set should the second set of blood cultures be drawn?
30-120 min
IV cannulation needle gauges
18-24 (small vein)
12-18 (large vein)
ABG needle insertion angle
45º
Intradermal injection needle length and gauge
0.5in, 24-30g
Subcutaneous injection needle length and gauge
5/8, 3/4, 1in
23-25 gu (adults, older children)
25-27 gu (infants)
Subcutaneous injection needle insertion angle
45-90º
Intramuscular injection needle length and gauge
1.5in, 19-22 gu
Intramuscular injection needle insertion angle
90º
In wound healing, rapid strengthening occurs when?
Days 5-17
In wound healing, repigmentation occurs when?
3-5 yrs
When would you update tetanus in a px with a non-tetanus prone wound?
If > 10 yrs
When would you update tetanus in a px with a tetanus prone wound?
If > 5 yrs
What is the vaccine schedule in a px with a tetanus prone wound who is previously unvaccinated?
Tdap + TIG
Td at 4-8 wks + 6-12 wks
Primary intention is considered if a px presents within __________ from time of injury
< 6-8 hrs
Third or Delayed Primary intention is delay of formal closure by how long?
4-5 days
Which anesthetic agents have a duration of < 2 hrs?
Lidocaine
Prilocaine
Carbocaine
Which anesthetic agents have a duration ≥ 2 hrs?
Lidocaine w/ epi
Marcaine
What is Benadryl’s duration of action?
< 30 min
How is buffer calculated?
1ml bicarb per 10ml of 1% lidocaine
What are the needle gauges for administering anesthetic? What are the pros/cons of using each size?
30 gu: Less pain w/ puncture, more pain w/ injection
26 gu: More pain w/ puncture, less pain w/ injection
Vicryl sutures are absorbed within ________
< 70d
Chromic Gut sutures are absorbed within ______
< 90d
Describe the technique for irrigation (including equipment + sizes)
100-300 mL of Saline
35 mL syringe + 18 gu needle
What size sutures would be used on the face?
5-0
6-0
What size sutures would be used on the trunk/extremities?
5-0
What size sutures would be used on the scalp?
4-0
5-0
Staples
What size sutures would be used on the feet/knees/elbows?
3-0
4-0
How far apart should sutures be spaced on the face?
3mm apart
How far apart should sutures be spaced (except on the face)?
5-10mm apart
What size sutures should be used for a running suture? Why?
5-0/4-0
For added strength
What size suture should be used for vermillion border lacs?
6-0
What size and type of suture should be used on the tongue?
4-0 Chromic Gut or Vicryl
What size and type of sutures should be used on the scalp?
4-0 Prolene
Staples
What size and type of sutures should be used on tendons?
4-0 Nylon w/ taper
or round-tipped needle
When should a skin tear be reassessed after tx?
48 hrs
When should face sutures be removed?
4-5d
When should scalp sutures be removed?
7-10d
When should sutures be removed on an extremity without tension?
8-10d
When should sutures be removed on the torso/palms/soles/digits?
10-12d
When should sutures be removed on an extremity under tension?
10-14d
To minimize scarring, how long should SPF or a bandage be worn?
6-12 mos
To minimize scarring, how long should silicone gel be applied for?
3 mos
One sign of volume deficit is a BUN:Cr ratio of ____________
> 15:1
What is maintenance dosing for fluid management?
D5 0.5NS + 20 meq KCl x 2L/d
What is replacement dosing for fluid management?
1L NS rapid bolus until clinical improvement
One sign of clinical improvement in replacement fluid management is a urine output of ___________
> 0.5 ml/kg/hr
PRBC transfusion is indicated if Hgb is _________
< 6-8 g/dL
1U of PRBC raises Hgb by ______
1 g/dL
What is the dosing for protamine sulfate in heparin reversal?
1-1.5 mg IV per 100 U heparin
What are the needle sizes for transfusions?
22 gu, 18 gu (rapid transfer)
When is rapid transfusion indicated?
if ≥ 3 U/hr is needed
Autotransfusion quantity should not exceed _______
10-15 L
What would classify as a massive transfusion?
> 50% total blood volume replaced over 12-24 hrs
10 U given over 24 hrs
4 U given over 1 hr
What is the ratio for massive transfusions?
1:1:1 or 1:1:2
PLT:Plasma:PRBC
What pressure is a tourniquet on the upper extremity inflated to?
50-100 mmHg over SBP
What pressure is a tourniquet on the lower extremity inflated to?
2x SBP
How often are VS checked during Phase 1 in the PACU?
q5 min for first 15 min
How often are VS checked during Phase 2 in the PACU?
q30-60 min
Following surgery, how often are VS checked?
q5 min until fully awake
q15 min until stable
q30 min until transferred
Early Post Op fever occurs when?
Days 1-3 post op
Late Post Op fever occurs when?
Days 4-30 post op
Delayed post op fever occurs when?
> 30 days post op
Surgical site infection is most common during what post op days?
3-30
A px is at highest risk of VTE ___________ after surgery, but risk is still present for __________ post op
first 1-2 wks; 3 mos
How is MAC awake calculated?
40% of MAC
A spinal block is administered at what level of the spine?
L3-4
