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10 cards · Acute Care + Field Ops series

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Every card: rigid PVC, 2.25 × 3.5 in, dark ink on field-kit tan, slot-punched for a badge reel. $14 each, free US shipping. First-run cards ship July 25.

VENT TRANSFER
CRASH CARD
GAS EXCHANGE problem → correction
O2SpO2 / PaO2 low↑ FiO2 then ↑ PEEP
CO2EtCO2 / pCO2 high↑ RR then ↑ volume
CO2EtCO2 / pCO2 low↓ RR
DOPES
  • Displaced tube
  • Obstructed / plugged
  • Pneumothorax
  • Equipment failure
  • Stacked breaths
DOTTS
  • Disconnect vent
  • O2 100% · bag by hand
  • Tube: suction + EtCO2
  • Tweak settings
  • Sounds equal
HIGH PRESSURE  kink · plug · biting · bronchospasm · PTX
LOW PRESSURE  disconnect · cuff leak · extubated
TIDAL VOLUME 6 mL/kg PBW · by height & gender
HTF mLM mL
5'0"275300
5'2"300330
5'4"330355
5'6"355385
5'8"385410
5'10"410440
6'0"440465
6'2"465495
6'4"495520
ARDSNET (ARMA)
  • TV 6 mL/kg PBW · range 4–8
  • Plat ≤30 · if >30: ↓TV 1 mL/kg → min 4
  • RR ≤35 · titrate to pH
  • pH 7.30–7.45 · ≥7.15 tolerated
  • PaO2 55–80 · SpO2 88–95
  • ΔP ≤15 (Amato, post-hoc)
PBW derives from height + gender, not weight. 8 mL/kg = table × 1.33.
⚠ STILL HYPOXIC — ESCALATE IN ORDER
1 sedate deeper 2 paralyze 3 ↑PEEP (Plat ≤30, ΔP ≤15) 4 prone if able 5 accept SpO2 88 / pH ≥7.15 6 ECMO call (P/F <80)
High PEEP derecruits in seconds — clamp the tube before ANY circuit break.
FIELD REFERENCE · NOT A PROTOCOLVERIFY LOCALLY
MODES — HAMILTON T1
HAMILTONEQUIVALENTFUNCTION
(S)CMV+Volume ACevery breath gets set volume
PCV+Pressure ACevery breath gets set pressure
SIMV+SIMVset rate + free breaths between
SPONTPSV / CPAPpatient drives, vent assists
ASVAdaptivevent picks rate/volume from %MinVol
DuoPAPBiPAP / APRVtwo pressure levels, spont. on both
NIVMask BiPAPleak-compensated mask ventilation
PRESSORS
AGENTCRV
Norepi●●
Epi●●●●●●
Vasopressin●●●●●●
Dopamine●●
Dobutamine●●●●
Phenylephrine●●●●
Milrinone●●●●
C contractility · R rate · V vasoconstriction    ●● strong · ● mild · ↓ drops it
SEDATION / PARALYTICS onset → duration
INDUCTION
Etomidatesec → 3–5m
Ketamine1m → 10–20m
Propofol<1m → 3–10m
PARALYSIS
Succinylcholine45s → 6–10m
Rocuronium1m → 45–70m
MAINTENANCE
Fentanyl2m → 30–60m
Midazolam3m → 1–2h
Dexmedetomidineslow → short
Propofol gttfast on/off
Ketamine gttsteady
SEDATE BEFORE PARALYZE
rocuronium outlasts induction — re-dose sedation first
VERIFY AGAINST LOCAL PROTOCOL
CC-VT-01ACUTE CARE

Vent Transfer

Gas exchange corrections, DOPES/DOTTS, tidal volume by height, ARDSnet, escalation to ECMO.

$14 In stock
LAB VALUES
CRASH CARDCC-LV-01 · ACUTE CARE 01
BASIC METABOLIC PANEL adult reference
Na135–145
K3.5–5.0
Cl / CO₂98–106 / 23–29
BUN / Cr7–20 / 0.6–1.2
Glucose70–100 (fasting)
Calcium8.5–10.5
Mg / Phos1.7–2.2 / 2.5–4.5
EXTENDED CHEMISTRY
Anion gap8–12
Osmolality275–295 mOsm/kg
Ammonia lab-specific15–45 µg/dL
Lipase lab-specific10–140 U/L
ABG arterial · PaCO₂ / PaO₂ mm Hg
pH7.35–7.45
PaCO₂35–45
PaO₂80–100
HCO₃⁻22–26 mEq/L
SaO₂95–100 %
Lactate0.5–2.0 · >4 critical mmol/L
amber = high-alert analyte — recap on back
FIELD REFERENCE · NOT A PROTOCOLVERIFY LOCALLY
CBC
WBC4.5–11 ×10³/µL
HgbM 14–18 / F 12–16 g/dL
HctM 42–52 / F 37–47 %
Platelets150–400 ×10³/µL
COAGULATION
PT11–13.5 s
INR0.8–1.1 (therapeutic 2–3)
aPTT25–35 s
Fibrinogen200–400 mg/dL
D-dimer lab-varies<0.5 µg/mL FEU
CARDIAC MARKERS
Troponin hs vs conventional<99th %ile · assay-specific
BNP<100 pg/mL
LIVER FUNCTION
AST / ALT10–40 / 7–56
Alk Phos44–147
T bili / Alb0.1–1.2 / 3.5–5.0
HIGH-ALERT — FLAGGED ON THIS CARDsame ranges, one glance
K3.5–5.0
Glucose70–100 (fasting)
INR0.8–1.1 (therapeutic 2–3)
Lactate>4 critical
EDUCATIONAL REFERENCE ONLY
ranges and protocols vary by facility and lab — always follow your institution's policies
RANGES VARY BY LAB · VERIFY LOCALLY
CC-LV-01ACUTE CARE 01

Lab Values

Normal adult ranges for the labs you check most — chemistry, ABG, cardiac — high-alert values in amber.

$14 Ships July 25
ETT SIZING
CRASH CARDCC-ETT-01 · ACUTE CARE 02
PEDIATRIC ETT uncuffed-led · cuffed = −0.5 · depth at lip
AGElbkgUNCUFFCUFFDEPTH cm
Preterm2–51–2.52.5–3.06–8
Newborn7–113–53.0–3.59–10
6 mo1573.5–4.03.0–3.510.5–12
1 yr22104.0–4.53.5–4.012–13.5
2 yr26124.54.013.5
4 yr35165.04.515
6 yr44205.55.016.5
8 yr55256.05.518
10 yr70326.56.019.5
12 yr88407.06.521
14 yr110507.0–7.56.5–7.021
FORMULAS · 1–10 YR
  • Uncuffed (age÷4)+4
  • Cuffed (age÷4)+3.5
  • Depth 3 × tube ID cm
  • Neonate kg + 6 cm at lip
BLADE
  • Preterm Miller 0
  • NB–2 yr Miller 1
  • 2–8 yr Miller / Mac 2
  • 8 yr+ Mac 3 · Mac 4 lg
SUCTION CATH 2 × ETT ID in Fr · 4.0 tube → 8 Fr
GASTRIC / OG 2 × ETT ID in Fr · decompress after BVM
STYLET straight-to-cuff ~35° · tip never past Murphy eye
⚠ FAILED AIRWAY — MOVE, DON'T REPEAT
1 reposition + bougie 2 size down 0.5 3 SGA / LMA 4 2-person BVM + OPA/NPA 5 surgical airway — mark cricothyroid early if predicted difficult
Max 2 attempts per operator — SpO2 recovery between every attempt.
FIELD REFERENCE · NOT A PROTOCOLVERIFY LOCALLY
ADULT oral · depth at teeth
Female7.0–7.5 · 21 cmMac 3
Male7.5–8.0 · 23 cmMac 3–4
Nasal route+2–3 cmto oral depth
Suction12–14 Fr2 × tube ID
Bougiecoudé tip anteriorhold-up ≈ tracheal
LMA BY WEIGHT & difficult airway
SIZEkglb
1<5<11
1.55–1011–22
210–2022–44
2.520–3044–66
330–5066–110
450–70110–154
570–100154–220
6>100>220
LEMON
  • Look externally
  • Evaluate 3-3-2
  • Mallampati ≥3
  • Obstruction
  • Neck mobility
CONFIRMATION every tube · every move
EtCO₂waveform capnography = standard
Auscultateequal bilateral · epigastrium silent
Depthat teeth vs table · note & mark
CXRtip 2–4 cm above carina
Mistingunreliable · never sole confirmation
⚠ CUFF 20–30 cmH₂O — MANOMETER, NOT FEEL
>30 mucosal ischemia · <20 leak / aspiration · recheck after transport & altitude change
No EtCO₂ waveform → assume misplaced — remove & reconfirm.
DEPTH = 3 × TUBE ID
cm at the lip — reassess after every patient move
VERIFY AGAINST LOCAL PROTOCOL
CC-ETT-01ACUTE CARE 02

ETT Sizing

Preterm-to-adult tube sizes and depths, weights in both lb and kg on every pediatric row.

$14 Ships July 25
VASOACTIVE DRIPS
CRASH CARDCC-VD-01 · ACUTE CARE 03
INFUSIONS usual adult IV · titrate to effect
AGENTRECEPTORDOSEMIX
VASOPRESSORS
Norepinephrineα₁ > β₁0.01–0.5 µg/kg/min4 mg/250 = 16 µg/mL
Epinephrineβ₁β₂ > α₁0.01–0.5 µg/kg/min4 mg/250 = 16 µg/mL
VasopressinV₁0.03–0.04 U/min fixed20 U/100 = 0.2 U/mL
Phenylephrineα₁ pure0.5–6 µg/kg/min10 mg/250 = 40 µg/mL
INOTROPES
DopamineD→β₁→α₁2–20 µg/kg/min400 mg/250 = 1600
Dobutamineβ₁ > β₂2–20 µg/kg/min250 mg/250 = 1000
MilrinonePDE30.375–0.75 µg/kg/min20 mg/100 = 200
Amber agent = extravasation / high-alert. Dopamine effect is dose-dependent. Milrinone load & peripheral max rates omitted — facility-specific. Verify concentrations locally.
CHOOSE THE PRESSOR first-line by shock type
SEPTICNorepi+ vaso if refractory
CARDIOGENICNorepi ± dobutaminepressure first, then pump
ANAPHYLAXISEpidrip after IM dosing
NEUROGENICNorepi / phenylephrinewatch bradycardia
BRADYCARDICEpi / dopaminepace if refractory
LINE SAFETY
CENTRAL  preferred for all vasoactives · dedicated pump · labeled line
PERIPHERAL  bridge only · large vein · lowest dose · site check q1h
⚠ EXTRAVASATION
1 stop infusion 2 aspirate via catheter 3 phentolamine 5–10 mg SC in 10 mL NS around site 4 new line · restart
Phentolamine reverses α agents — norepi · epi · phenyl · dopamine.
FIELD REFERENCE · NOT A PROTOCOLVERIFY LOCALLY
PUSH-DOSE PRESSORS bridge to the drip
EPI — 10 µg/mL
MIX1 mL of 0.1 mg/mL + 9 mL NS
YIELDS10 µg/mL × 10 mL
DOSE0.5–2 mL (5–20 µg) q2–5 min
PHENYL — 100 µg/mL
MIX1 mL of 10 mg/mL in 100 mL NS
YIELDS100 µg/mL — draw 10 mL
DOSE0.5–2 mL (50–200 µg) q2–5 min
Label every syringe immediately after mixing.
EFFECTS C contractility · R rate · V constriction
AGENTCRVCAUTION
Norepi●●first-line for most shock
Epi●●●●●●tachyarrhythmia · ↑lactate
Vasopressin●●●●●●adjunct — fixed, not titrated
Dopamine●●arrhythmogenic — avoid if tachy
Dobutamine●●●●may drop BP — pair w/ pressor
Phenylephrine●●●●reflex brady · ok if tachyarrhythmic
Milrinone●●●●long t½ · renal clearance · ↓BP
●● strong · ● mild · ↓ drops it
TITRATION the whole game
TARGETMAP ≥65 mmHg — or per order · reassess perfusion, not just the number
ADJUSTq2–5 min to response · small steps · one drug at a time
ESCALATEnear max add second agent, don’t chase one drip forever
MONITORart line when able · UOP · mentation · lactate trend
NO RESPONSEcheck line · pump · concentration math then steroids / Ca²⁺ / occult loss
WEANtaper slowly — never abrupt · vaso last in septic shock
DOSE MATH pump sanity check
µg/min = µg/kg/min × kg
mL/h = µg/min × 60 ÷ conc (µg/mL)
PRESSORS BUY TIME — NOT A FIX
fill the tank, find the cause — reassess volume before every uptitration
VERIFY AGAINST LOCAL PROTOCOL
CC-VD-01ACUTE CARE 03

Vasoactive Drips

The seven infusions you actually hang — receptors, dose ranges, standard mixes, choose-the-pressor.

$14 Ships July 25
RSI · AIRWAY
CRASH CARDCC-RSI-01 · ACUTE CARE 04
PREPARE before the first attempt
Pre-oxygenate100% O₂ ≥3 min or 8 VC breaths
Apneic O₂NC 15 L/min — on through attempt
Positionear-to-sternal-notch · ramp if obese
Backupsuction on · bougie · SGA at hand
Pressorpush-dose epi drawn up before drugs
Planverbalise A→B→C · assign roles
INDUCTION → PARALYSIS IV · mg/kg
AGENTmg/kgONSETDURATIONHEMODYN.
INDUCTION
Etomidate0.330–60s3–10mneutral
Ketamine1–230–60s5–15m↑BP ↑HR
Propofol1.5–2.5<60s5–10m↓↓BP
Midazolam0.1–0.360–90s15–30m↓BP · slow
PARALYSIS
Succinylcholine1.545–60s6–10m↑K⁺
Rocuronium1.2 RSI45–60s30–60mneutral
ROC 1.2  intubating conditions ≈ sux speed · plan for 30–60 min down
NO ANALGESIA  etomidate / midazolam — pair with fentanyl
NO SUX — USE ROC
  • Hyperkalemia known / suspected
  • Burns / crush >72 h out
  • Denervation GBS · ALS · SCI
  • MH history personal / family
SHOCK / LOW BP
  • SI ≥1 ketamine or etomidate
  • cut induction dose 25–50%
  • avoid propofol
  • push-dose epi 5–20 µg q2–5m
FIELD REFERENCE · NOT A PROTOCOLVERIFY LOCALLY
FAILED AIRWAY change something every attempt
Each attemptblade · bougie · position · operator
SpO₂ fallingstop 2-hand BVM + OPA/NPA
BVM failssupraglottic (i-gel / LMA)
⚠ CAN'T INTUBATE · CAN'T OXYGENATE
1 ≤3 attempts total 2 declare CICO aloud 3 last SGA try 4 scalpel–bougie–tube cric 5 confirm EtCO₂
Decide to cut while SpO₂ still >80 — fixation on the tube kills.
QUICK DOSES mg by weight · midpoint doses
WT kg ETOM
0.3
KETA
1.5
SUX
1.5
ROC
1.2
5015757560
6018909072
702110510584
802412012096
9027135135108
10030150150120
11033165165132
POST-INTUBATION confirm → sedate
CONFIRM  EtCO₂ waveform · equal sounds · secure depth
HYPOTENSIVE  fluids · push-dose epi 5–20 µg q2–5m
PUSH — RE-SEDATE
Fentanyl25–100 µg IV
Midazolam1–2 mg IV
WATCH
Propofol↓BP
Dexmedetomidine↓HR
DRIPS
Fentanyl25–200 µg/h
Propofol5–50 µg/kg/min
Midazolam1–5 mg/h
Ketamine0.5–2 mg/kg/h
Dexmedetomid.0.2–0.7 µg/kg/h
SEDATE BEFORE PARALYZE
roc 30–60 min outlasts every induction agent — re-dose sedation first
VERIFY AGAINST LOCAL PROTOCOLCC-RSI-01
CC-RSI-01ACUTE CARE 04

RSI & Airway Drugs

Pre-oxygenation through failed airway: induction and paralytic doses, onset, duration, hemodynamics.

$14 Ships July 25
PEDIATRIC EMERGENCY
CRASH CARDCC-PED-01 · ACUTE CARE 05
WEIGHT & VITALS APLS wt (age+4)×2 kg · 1–10 y
AGE~KGHRRRSBP ≥
Neonate3.5100–18030–6060
Infant <1 y4–10100–16030–6070
Toddler 1–3 y10–1490–15024–4072–76
Preschool 3–6 y14–2080–14022–3476–82
School 6–12 y20–4070–12018–3082–90
Adolescent >12 y>4060–10012–2090
SBP floor 1–10 y = 70 + 2×age · a "normal" BP does not rule out shock
ARREST weight-based · IV/IO
Epi 0.1 mg/mL0.01 mg/kg = 0.1 mL/kg q3–5m · max 1 mg
Defibrillate2 J/kg → 4 J/kg · max 10 J/kg or adult dose
Cardioversion0.5–1 J/kg → 2 J/kg · synchronized
Amiodarone5 mg/kg · max 300 mg · may repeat ×2
Adenosine0.1 → 0.2 mg/kg rapid · max 6 → 12 mg
Compressions100–120/min · ⅓ AP depth · 15:2 two-rescuer
FLUIDS
  • Bolus 10–20 mL/kg isotonic
  • reassess after each bolus
  • Blood 10 mL/kg
  • Neonate/CHD 10 mL/kg
GLUCOSE rule of 50
  • D10 5 mL/kg · D25 2 mL/kg
  • D50 1 mL/kg (% × mL/kg = 50)
  • low: <60 child · <45 neonate
  • recheck 10–15 min after dose
⚠ NORMAL-LOOKING LOWS — HYPOTENSION IS LATE
Children compensate: tachycardia · cool/mottled skin · cap refill >2 s · narrow pulse pressure with SBP intact. Falling BP = decompensation — act before it.
Tachycardia out of proportion + poor perfusion = shock with a "normal" BP.
FIELD REFERENCE · NOT A PROTOCOLVERIFY LOCALLY
AIRWAY cuffed ETT = age/4 + 3.5
AGEETT cuffedDEPTH cmBLADE
Neonate3.09Miller 0–1
1 y3.5–4.010.5–12Miller 1
2 y4.012Miller 1–2
4 y4.513.5Miller/Mac 2
6 y5.015Mac 2
8 y5.516.5Mac 2
10 y6.018Mac 2–3
12 y6.519.5Mac 3
depth at lip = 3 × ETT size · uncuffed = age/4 + 4 · confirm with EtCO2
SEIZURE · ANAPHYLAXIS · RSI
Midazolam0.1 IV / 0.2 IM/IN mg/kg · max 5 IV / 10 IM
Epi IM 1 mg/mL0.01 mg/kg max 0.3–0.5 mg · thigh · q5–15m
Ketamine1–2 mg/kg IV · 4 mg/kg IM
Fentanyl1–2 mcg/kg IV/IN · slow push
Rocuronium1 mg/kg IV
Atropine0.02 mg/kg · max 0.5 mg · symptomatic brady
Naloxone0.1 mg/kg IV/IO/IN · max 2 mg · repeat prn
NEONATE QUICK
  • warm · dry · stimulate · suction prn
  • apneic/gasping PPV 40–60/min
  • HR <60 + poor perfusion
  • compressions 3:1
  • epi 0.01–0.03 mg/kg IV (0.1 mg/mL)
  • no chest rise MR SOPA corrections
  • SpO2 target 85–95% by 10 min
FIRST MOVES
  • estimate kg first — every dose needs it
  • check glucose in any sick child
  • brady oxygenate + ventilate first
  • IO early if no IV in ≤2 attempts
  • length-based tape > age formulas
  • keep warm — cold worsens everything
BRADYCARDIA = HYPOXIA
until proven otherwise — fix airway & oxygenation before drugs
VERIFY AGAINST LOCAL PROTOCOL
CC-PED-01ACUTE CARE 05

Pediatric Emergency

Weight and vitals by age band, arrest doses, airway sizing, seizure/anaphylaxis/RSI drugs.

$14 Ships July 25
BURN ASSESSMENT
CRASH CARDCC-BRN-01 · ACUTE CARE 06
%TBSA — RULE OF NINES 2°/3° only · peds deltas amber
REGIONADULTPEDS
Head / neck918
Arm (each)99
Leg (each)1814
Trunk — anterior1818
Trunk — posterior1818
Perineum1
PALM RULE  patient's palm including fingers1% TBSA — scattered / irregular burns
DEPTH exam findings
SUPERFICIALepidermis · red, dry, blanches · painful · no blisters · not counted in TBSA
SUPERF. PARTIALpapillary dermis · wet, blisters, brisk blanch · very painful
DEEP PARTIALreticular dermis · mottled, sluggish / no blanch · ↓ pinprick sensation
FULLall layers · leathery, waxy, charred · no blanch · painless to touch
FLUID RESUSCITATION LR · count 2°/3° only
Parkland4 mL × kg × %TBSA · LR · total / 24 h
Modern start≈2 mL/kg/%TBSA · initial rate, then titrate
Peds+ D5 maintenance gtt · alongside resus fluid
⚠ HALF IN FIRST 8 h — FROM TIME OF BURN
0–8 h first half 8–24 h second half — clock starts at the burn, not arrival
Subtract prehospital fluid already given from the first-half volume.
EXAMPLE 70 kg × 40%11.2 L / 24 h · ≈700 mL/h × 8 h · then titrate to UOP
FIELD REFERENCE · NOT A PROTOCOLVERIFY LOCALLY
INHALATION INJURY airway closes fast
⚠ RED FLAGS INTUBATE EARLY
enclosed-space fire · carbonaceous sputum · singed nares / facial burns · stridor · hoarseness
Edema peaks over hours — secure the airway before it does.
CO · CYANIDE same fire, both possible
CARBON MONOXIDE
  • SpO₂ unreliable reads normal
  • 100% O₂ NRB · co-oximetry
  • 4–5 h air → ~1 h on O₂
  • HBO: AMS · pregnancy · COHb >25%
CYANIDE
  • enclosed space + AMS + ↑lactate
  • soot + hypotension / arrest → treat
  • hydroxocobalamin 5 g IV
  • peds 70 mg/kg · don't wait on labs
ELECTRICAL surface underestimates depth
Dysrhythmiacontinuous ECG + 12-lead · monitor ≥12–24 h if abnormal
Rhabdodark / tea urine → UOP 75–100 mL/h until clear
Deep injuryserial compartment checks · entry/exit wounds mislead
Labstrend CK · K⁺ — treat hyperkalemia early
BURN CENTER TRANSFER any one criterion
  • 01 partial >10% TBSA
  • 02 any full thickness
  • 03 face · hands · feet · genitalia · joints
  • 04 electrical or chemical
  • 05 suspected inhalation injury
  • 06 extremes of age
ESCHAROTOMY burn-team call
Indicationcircumferential full thickness — limb, chest, neck
Withpoor distal perfusion · restricted chest excursion / ↑PIP
TITRATE TO UOP — NOT THE FORMULA
adult 0.5 mL/kg/h · child 1 mL/kg/h · electrical 75–100 mL/h — reassess hourly
VERIFY AGAINST LOCAL PROTOCOL
CC-BRN-01ACUTE CARE 06

Burn Assessment

Rule of Nines with peds deltas, palm rule, depth tiers, Parkland fluids, toxic and electrical flags.

$14 Ships July 25
TRAUMA / SHOCK
CRASH CARDCC-TRM-01 · ACUTE CARE 07
HEMORRHAGIC SHOCK I–IV classic cutoffs · 70 kg
CLASSLOSSHRSBPPPRRMENTAL
I<15%<100nlnl14–20sl. anxious
II15–30>100nl20–30anxious
III30–40>12030–40confused
IV>40%>140↓↓>35lethargic
Narrowing pulse pressure is the earliest vital-sign change — BP holds until class III.
HR masked by β-blockers · elderly · pacemaker · athletes — don't trust a normal rate.
SHOCK TYPE exam hallmark → first move
TYPEHALLMARKFIRST MOVE
HYPOVOLflat neck veins · cool · clammyblood · find bleed
CARDIOGJVD + rales · coolinotrope · no bolus
OBSTRUCTJVD + clear lungsdecompress / drain
DISTRIBwarm · wide pulse pressurepressor + fluids
TARGETS
PERMISSIVE HYPOTENSION
  • SBP 80–90 · palpable radial
  • only until surgical hemostasis
  • bolus to target, not to normal
  • reassess after every unit
TBI EXCEPTION
  • SBP 90–100 minimum
  • one hypotensive episode
  • doubles TBI mortality
  • GCS ≤8 → secure airway
SHOCK INDEX = HR ÷ SBP · >0.9 occult shock · >1.0 think blood + MTP
⚠ BLEEDING CONTROL — IN ORDER
1 direct pressure 2 pack wound + pressure 3 tourniquet high & tight — mark time 4 junctional device / 2nd TQ above 1st
TQ not controlling second tourniquet proximal, side by side.
FIELD REFERENCE · NOT A PROTOCOLVERIFY LOCALLY
MASSIVE TRANSFUSION trigger early — ratios save
Ratio1:1:1 PRBC : FFP : platelets
TriggerSI >1 · ≥2 of: penetr · +FAST · SBP<90 · HR>120
TXA load1 g IV over 10 min · ≤3 h from injury
TXA maintenancethen 1 g IV over 8 h  (CRASH-2)
Calciumcitrate binds Ca → replace early w/ transfusion
Hypocalcemia kills: hypotension refractory to blood · coagulopathy · arrest.
LETHAL DIAMOND each arm feeds the others
  • Hypothermia <35 °C
  • Acidosis pH <7.2
  • Coagulopathy
  • Hypocalcemia
KEEP THEM WARM
  • strip wet · wrap · cover head
  • fluids + blood warmed
  • heat the cabin, not you
REASSESS is resuscitation working?
MARKERTREND TO SEE
Lactateclearing >10–20% / 2 h → normal <2
Base deficitmild 2–5 · mod 6–9 · severe ≥10
Pulse pressurewidening = volume responding
Urine output≥0.5 mL/kg/h after hemostasis
EtCO2rising with perfusion · <25 = low flow
WHERE THEY BLEED OUT floor + four more
SPACEHOLDSMOVE
Chest1.5 L / sidedecompress · chest tube
AbdomenlitersFAST → surgery, not fluids
Pelvis>2 Lbinder at greater trochanters
Femur1–1.5 L eachtraction splint
Externalladder on front face
FIX THE BLEEDING, NOT THE NUMBER
crystalloid dilutes, cools, and dilutes clot — blood replaces blood
VERIFY AGAINST LOCAL PROTOCOL
CC-TRM-01ACUTE CARE 07

Trauma & Shock

Hemorrhagic shock classes I–IV, shock-type differentiator, massive transfusion and reassessment.

$14 Ships July 25
ELECTROLYTES
CRASH CARDCC-LYT-01 · ACUTE CARE 08
REPLACEMENT DOSING adult IV · severity-tiered
K+ POTASSIUM3.5–5.0 mEq/L
3.0–3.4 · asymptomatic20–40 mEq PO/IV
<3.0 / symptomatic40–80 mEq IV · divided
Rate · peripheral≤10 mEq/h · monitor ≥10
central max per facility policy · 10 mEq ↑ K ~0.1 mEq/L
Mg2+ MAGNESIUM1.7–2.2 mg/dL
Repletion1–2 g IV over 30–60 min
TORSADES2 g IV over 1–2 min
PO₄ PHOSPHORUS2.5–4.5 mg/dL
Mild–mod0.08–0.16 mmol/kg IV
Severe <1.50.16–0.32 mmol/kg IV
Infuse over 4–6 h · K-phos if K low, else Na-phos
Ca2+ CALCIUMiCa 1.1–1.3 mmol/L
Gluconate1–2 g IV · peripheral OK
Chloride1 g = 3× elemental · CENTRAL
NEVER
  • K+ IV push — ever
  • CaCl periph — necrosis
  • Rapid Mg unless torsades
  • Ca + phos same line — precipitates
CO-REPLACEMENT
  • Mg first — K won't hold
  • K-phos counts toward K
  • Recheck before re-dose
  • PO route preferred if able
Mg BEFORE K
hypomagnesemia makes K repletion refractory — replete Mg first
FIELD REFERENCE · NOT A PROTOCOLVERIFY LOCALLY
ECG BY DERANGEMENT
ΔFINDINGS
↑K+peaked T PR↑ · flat P wide QRS sine wave
↓K+U waves · ST↓ · flat T · ectopy
↓Mg2+↑QT · torsades risk · worse with ↓K
↑Mg2+↓DTRs PR↑ · wide QRS block / arrest
↓Ca2+long QT · tetany · Chvostek / Trousseau
↑Ca2+short QT · bradycardia · lethargy
⚠ HYPERKALEMIA — EMERGENT · ECG Δ OR K ≥6.5
1 STABILIZE Ca gluconate 1 g IV over 2–3 min 2 SHIFT insulin 10 U reg IV + D50 25 g · albuterol 10–20 mg neb / 10 min 3 ELIMINATE dialysis · K binders · loop diuretic
Calcium protects the myocardium only — serum K unchanged. Track glucose after insulin.
EXPECT IT situation → derangement
Massive transfusion↓iCa (citrate) — give Ca
DKA on insulinK · Phos crash — replete early
Refeeding↓Phos · ↓K · ↓Mg
Crush · rhabdo · burns↑K — anticipate, monitor
Diuretics · NG losses↓K · ↓Mg
CKD · oliguria↑K risk — replete cautiously
RECHECK after dose
K+1–2 h after IV dose
Mg2+6–12 h after dose
PO₄ Phos6 h after infusion
iCa6 h after repletion
CORRECTIONS
Corr Ca = Ca + 0.8 × (4 − alb)
iCa preferred when available
Total Ca misleads in hypoalbuminemia — trust ionized.
TREAT THE ECG, NOT THE NUMBER
ECG changes at any K — calcium first, then shift, then eliminate
VERIFY AGAINST LOCAL PROTOCOL
CC-LYT-01ACUTE CARE 08

Electrolyte Replacement

Severity-tiered IV repletion for K, Mg, phos, and calcium with the critical rate limits in amber.

$14 Ships July 25
MARCH FIELD CARE
CRASH CARDCC-MFC-01 · FIELD OPS
M · MASSIVE HEMORRHAGE before anything else
TOURNIQUEThigh & tight · tighten until bleeding + distal pulse stop
TIMEwrite on TQ and casualty forehead
PACKwound packing + 3 min direct pressure
JUNCTIONALjunctional TQ / pack + pressure groin · axilla · neck
2ND TQside-by-side, proximal to first, if bleeding continues
A · AIRWAY
  • Position · chin lift / jaw thrust
  • unconscious → recovery position
  • NPA · tolerated semiconscious
  • Cric · surgical, if trained + failed above
  • burns / inhalation → airway early
R · RESPIRATION
  • Vented chest seal on open wounds
  • Needle decomp 10–14 ga · ≥3.25 in
  • 5th ICS AAL pref · 2nd ICS MCL
  • tension recurs — re-dart if needed
  • burp / replace clotted seal
C · CIRCULATION blood > crystalloid
SHOCK SIGN↓ mental status · weak / absent radial pulse
ACCESS18 ga IV · IO if ×2 fail or no time
TXA2 g IV/IO slow push · ≤3 h (was 1 g + 1 g)
FLUIDSwhole blood > components > crystalloid
BP TARGETpermissive: SBP 80–90 / radial pulse
TBI EXCEPT.keep SBP 100+ (newer trend 110+)
H · HYPOTHERMIA / HEAD
STRIPwet clothing off · insulate from ground
WRAPheat blanket + vapor shell + cap
FLUIDSwarm IV fluids when able
TBIavoid hypoxia SpO2 ≥90 · SBP 100+
RECHECKAVPU / pupils with every set of vitals
FIELD REFERENCE · NOT A PROTOCOLVERIFY LOCALLY
TQ CONVERSION if evac delayed
2 hreassess every TQ · convert if criteria met
CONVERT IFbleeding controlled · no shock · not an amputation · can monitor
METHODpressure dressing on · loosen slowly · leave TQ in place, ready
≥6 hNEVER remove — surgical setting only
ONGOING CARE PAWS · TCCC triple-option analgesia
FIGHTINGacetaminophen 1 g PO + meloxicam 15 mg still mission-capable
MOD-SEVketamine 20–30 mg slow IV/IO · 50–100 mg IM/IN
OPIOIDfentanyl OTFC 800 µg buccal not in shock / resp distress
ABXmoxifloxacin 400 mg PO · ertapenem 1 g IV/IM if no PO
WOUNDSexpose · dress · recheck every prior bleed
SPLINTsplint fractures · pulse check before + after
EVAC PRIORITY MEDEVAC categories
URGENT≤1 h · life / limb / eyesight · airway, tension, shock, TBI ↓
PRIORITY≤4 h · stable but will deteriorate untreated
ROUTINE≤24 h · stable, treated, holding
DOCUMENTATION
  • TQ time on device + forehead
  • casualty card stays with patient
  • meds: drug · dose · route · time
  • every intervention timed
MIST HANDOFF
  • Mechanism of injury
  • Injuries found / suspected
  • Signs — last set of vitals
  • Treatments given + times
⚠ REASSESS AFTER EVERY INTERVENTION — AND EVERY MOVE
1 bleeding / TQ 2 airway 3 chest / re-tension 4 mental status 5 warmth
Needle decompression buys minutes, not hours — tension pneumo comes back.
MARCH IN ORDER — BLEEDING KILLS FIRST
restart the sequence from M after every reassessment
VERIFY AGAINST CURRENT TCCC GUIDELINES
CC-MFC-01FIELD OPS 01

MARCH Field Care

The full MARCH sequence — hemorrhage, airway, respiration, circulation, hypothermia — TCCC-derived.

$14 Ships July 25