Acute Care Flashcards
Best way to assess ventilation in an intubated pt:
- chest motion + capnography + SaO2
- chest motion + aus + SaO2
- chest motion + aus + capo
- aus + capnography + SaO2
- aus + venous gas + capnograph
Chest motion (symmetric or not)
+ Auscultation
+ Capnography (exhaled CO2 within tubing near ETT measure CO elimination via capnograph)
Initial vent settings for child:
- FiO2 100% or less for sat
- RR 20 (20-30 infant and 12-20 for child)
- PIP 20
- PEEP 5
Plan: ABG in 10-15 minute and adjust accordingly
What is the ETT tube size formula?
Uncured ETT (mm)
= Age (years)/4
+ 4
i.e. 2 year old
= 2/4 = 0.5 + 4= 4.5
When should a child be intubated:
- A: can’t maintain patent airway or protect against aspiration
- B: can’t maintain adequate oxygenation
- B: can’t control blood CO2
- C/D: need sedation or paralysis for procedure
- Expecting deterioration that would lead to one of situation above.
What is an absolute contraindication for intubation
Complete airway obstruction
= Do ER cricothyroidotomy instead
Pyloric stenosis. Severe metabolic alkalosis. Give:
- HCL
- (lg) amt of IV Cl-
- KCL Bolus
- OR immediately
Large amt of chloride IV
Pyloric Stenosis: thickening of muscle from 2 wk-2 mon.
List 3 RF for pyloric stenosis
- 1st born male
- bottle feeding
- erythro or azithro given in < 2 wk old
- (+) FHX
What is icteropyloric syndrome?
Pyloric stenosis
+ Hyperbilirubin
Resolve w/ Sx
When do you provide IVF for pre-Sx Fluids?
- Infants dehydrated so IV fluid within 8h of last feed
- Teen= NPO overnight
What is the ED treatment for severe malnutrition who is in shock?
SHOCK
= lethargic, unconscious & cold hands
+ slow CRT or weak fast pulse
= ABC = O2 = **D10 5cc/kg IV bolus = **15cc/kg over 1 hr (0.45NS + D5W) = monitor HR or RR
If not improvement assume septic shock
Do you give IVF to pt with severe malnutrition w/ severe dehydration but NO SHOCK? Why or why not?
NO
Refeeding Syn RISK
If Hgb <40 + resp distress= lasix + blood
Ensure BG > 3
Ensure T > 35 (Ax)
Slow feed 100 kca/kg/day goal
Goal: 0.5-1 pound/wk till ~90% avg BW for sex, ht, age
What is refeeding syndrome?
Acute tachy HR + HF w/ neuro symp
assoc with acute decline in serum phosphate + Mg.
- excess carb= insulin spike= hypo K, hypo-Phos, hypo-Mag
Hallmark = severe low phosphate during 1st week of refeeding
Serum phosphate < 0.5= wk, rhabdo, neutrophil dysfunction, cardioresp failure, arrhythmia, sz, LOC
When do you expect refeeding syndrome?
Wt fall 80% below expected wt for height.
List indications for hospitalization of anorexia nervosa.
Psych
> SI intent + plan
> poor family + pt motivation to recover
Physical <80% of healthy BW > Temp 36 or less > HR < 50 > cardiac rhythm disturbances > BP < 80/50 > postural low BP with > 10 mmHg drop or > 25 HR increase
Lab > low K > low phos > low BG > dehydrated > hepatic, cardiac, renal compromise
Other
> require supervision after meals and using restroom
> failed day tx
How do you define severe wasting and/or b/l edema
Severe acute malnutrition
= severe wasting +/- b/l edema on feet
- Wasting= wt for length or ht < 3rd SD
- Marasmus= severe wasting
- Kwashiorkor= edema (protein loss)
- Maramic-Kwashiorkor= severe wasting + edema
Most damaging component on air transport for closed head injury
LOW BP
- brain ischemia occur as cerebral perfusion pressure fall
Which of following LEAST associated with increased ICP?
- meningitis
- encephalitis
- TCA overdose
- intracranial bleed
- tumour
TCA overdose
10% pneumo about to be air transported. Best treatment?
- chest tube
- needle in 2nd intercostal space midclavicular line
- leave pneumo
- only tube if tension
Chest tube
Defined HTN emergency. List two meds that can lower BP acutely. List one AE of each (not including low BP).
= Severe HTN with life threatening symptom or end organ injury
- less vision
- papilledema
- encephalopathy (h/a, sz, LOC)
- HF
- renal f’n deteriorate
Goal: reduce BP 10% in 1st hr and 15% in next 3-12h
IV meds:
- labetolol = low HR, bronchospasm
- nicardipine= sustained tachy HR, CP, flushing
- Na nitroprusside
= severe low BP, dizzy, hypo-thyroid, muscle twitch, cyanide poisoning
What are the 3 components of brain death?
“ABC”
- Apnea
- Brainstem reflex Absent
- Cause known and Irreversible
+ 2 exams show same finding between observation period (24h BB and 12h everyone else)
List some reversible causes of coma that must be R/O before brain death?
Coma: unresponsive to noxious stimuli
Aetiologies:
- **toxins
- **metabolic dx
- **hypothermia
- hypoxia
- hypotension/ shock
- **low BG, Na
- non convulsive sz
- hypothyroid
- hypocortisol
- **liver failure
- **renal failure
- **sepsis
- **meningitis
- encephalitis
What are the brainstem reflexes in brain death?
EXTRA INFO
- Pupillary light
- Corneal reflex
- Doll’s eye
- Oculovestibular reflex (irrigate TM and look for eye mvmt)
- Gag or cough reflex
What is apnea test?
Normal ABC, No apnea drugs.
- FiO2 100%
- Adjust vent to get CO2 of 40
- get base line gas
- Repeat blood gas every 5-10 min.
Until pCO2 > 60 or > 20 above baseline.
T or F: ancillary studies (EEG, radio nucleotide cerebral blood flow) required for brain death dx?
False.
UNLESS:
- Cspine injury (b/c can’t do doll’s eye)
- Sedation med
- Too unstable for apnea test.
Benefit: shorten observation time
Con: must wait 24h to repeat test if shows activity
What is criteria for neurologic determination of death?
- absent hyperthermia
- apnea despite hypercapnia
- spinal reflexes absent
- characteristic EEG
Apnea despite hypercapnea
List 4 medical reason why brain dead pt may not be organ donor:
Infection
- *- active CMV
- *- active Hep B
- *- active Hep C
- *- viral encephalitis
- active West Nile virus
- active disseminated TB
- severe untreated sepsis
- AIDS
Malignancy
**- active extra cranial malignancy
determination of death using neurological criteria is also known as
Brain death
T or F: spinal reflexes may occur in brain death
True.
i.e. subtle semi-rhythmic mvmt of facial nerve, finger flexor or tonic neck reflexes etc.
Boy struck by lightning. Most likely consequence:
- liver failure
- renal failure
- cardiovascular collapse
Cardiovascular collapse
R/O delayed cerebral edema, intracranial bleed, sz, systole, trauma from thrown body
What is the classic pattern of burn that suggest lightning?
Tree like or feathering
Describe cardiac arrest pathway.
Cardiac Arrest:
> CPR + give O2 and attach monitors
> Rhythm shockable
- VF or pulses VT
SHOCK 2J/kg
> CPR x 2 min + IV access
SHOCK 4J/kg
> CPR
EPI- 0.1mL/kg of 1:10K Repeat q3-5 min. (or ETT 1 in 1K)
> CPR
Check rhythm + pulse q 2 minutes
Shock
> Amoidarone or Lidocaine
NOTE: if not shockable then CPR + Epi.
NOTE: treat reversible causes
Describe appropriate CPR:
- Push hard >1/3 of AP diameter chest
- Push fast (min. 100 /min)
- Allow chest recoil
- Minimize interruption in compression
- Rotate compressors every 2 minutes
- No leaning (stool if need to)
- Avoid excessive ventilation
What are reversible causes in cardiac arrest to R/O?
5 H + 5 T’s
> Hypovolemia > Hypoxia > Hydrogen (Acidosis) > Hypoglycemia > Hypo/hyperkalemia > Hypothermia
> Tension pneumo > Tamponade, cardiac > Toxin > Thrombosis, pul > Thrombosis, Coronary
Child with pulseless wide-complex tachy. Got defibrillated x 1. Getting CPR. IV in. What to do next?
- shock 2 J/kg
- shock 4J/kg
- epi 1: 10 K 0.1cc/kg
- lidocaine
Epi 1:10K 0.1cc/kg
What is pulseless electrical activity?
Normal appearing cardiac monitor and non responsive + no pulses.
- Give EPI
What med do you give for asystole?
Epinephrine
What med do you give for bradycardia arrest?
Epinephrine
OR atropine if increased vagal tone or primary AV block
What med do you give for SVT?
Adenosine
0.1 mg/kg (max 6mg)
2nd dose= 0.2 mg/kg
What med do you give for V tach w/ pulse? Without a pulse?
w/ Pulse: Amiodarone, Lidocaine
*if no hemodynamic instability and regular monomorphic QRS can give adenosine first
w/out Pulse= Defibrillate then Epi > Last choice amiodarone
What med do you give for pulseless electrical activity?
Epinephrine
Blood loss after MVA. 15%. VS that most represent pt?
- HR 120, RR 30, BP 90/60
- HR 130, RR irregular, BP 100/70
- HR 220, RR 36, BP 100/70
- HR thready, RR 36, BP not obtainable
15-29%= MILD
- HR up (120) **>100
- ** Normal BP
- U/O low
- RR normal to mild up (20-30)
If RR > 30= 30-40% blood loss.
Best early sign of shock:
- high HR
- low BP
- low Temp
Tachycardia
List 5 signs of shock:
Low mentation high HR low BP CRT restricted or flush Low U/O peripheral and core temp difference
Sick in ICU w/ strep pneumoniae sepsis. Hypotension. HR 220. Low LOC. This is:
- uncompensated hypovolemic shock
- compensated cariogenic shock
- uncompensated distributed shock
- uncompensated obstructive shock
Uncompensated
+
Sepsis = distributive shock.
Example:
- hypovolemic= hemorrhage, dehydration
- cardiogenic= cardiomyopathy, metabolic dx, duchenne
- distributive= anaphylaxis, sepsis, neurogenic
- obstructive= tension pneumo, PE, tamponade
Newborn. Resp distress. RR 80. HR high. CRT poor. BP poor. hyper inflated chest with little undraping. No sounds on left. Turning cyanotic. Likely dx? Test? Tx?
Tension pneumo.
Transillumination
Tx: needle decompression
Describe your steps for needle decompression.
Butterfly needle (23 gauge if > 32 wk) \+ 3 way stop cock and syringe
Insert into 2nd ICS mid-clavicular (above 3rd rib)
List 2 dx criteria for ARDS
“One Bilateral Failure”
within 1 wk of insult
+ b/l opacities not fully explained
+ resp failure (not explained by HF or fluid)
List two life threatening ppt for anterior mediastinal mass.
- Airway compromise -> lose airway, resp failure
- Cardiac tamponade -> cause obstructive stroke
- Vascular obstruction (SVC syndrome) -> cause obstructive shock
List status asthmatics meds in order of progression.
- Oxygen
- Beta agonist (Ventolin)
- Ipratropium (Atrovent)
- Systemic steroids (Pred, Prednisolone, Methylpred)
- **IV salbutamol
- ** IV magnesium sulfate
- ** IV theophylline
- ** Ketamine
- ** +/- Epinephrine (if anaphylaxis)
- ** Heliox
- ** Non invasive resp support
- AVOID intubate
Fever, WOB. White out on 1 lung CXR. Next step:
- decubitus XR
- Chest US
- consult Sx
- Bronch
Chest US
DDX: pleural effusion, empyema, hemothorax, complete lung collapse, CAP, mass
US to see drainage + Sx consult
Teen with tension pneumo. Where do you put the needle?
Needle over 3rd rib in 2nd ICS in midclavicular line.
23 gauge BB
20 gauge teen
Name four signs of tension pneumo:
**resp distress
**trach deviation toward contralateral side
hyper resonance on affected side
hyper expansion of affected side
**low breath sides on affected side
**pulsus paradoxus
What is purpose of the flutter valve in chest tubes?
One way valve within tube that allow air/fluid to exit but prfevent air or fluid from entering.
Post-Sx. Sudden CP, cough, O2 drop. 3 Likely causes of sudden dx. 3 investigation to confirm.
- Pulmonary venous thromboembolism
- Pulmonary fat embolism
- Pneumothorax
3 tests: - D dimer - Spiral CT with contrast - CXR or U/S with doppler (DVT) or ECG
Seizing child. Failed IV. HR 180 for 3 y.o. RR 60. BP stable. Next?
- intubate
- intranasal midaz
- IV valproic
- IV phenytoin
Intranasal Midaz
Other CPS option:
- ativan buccal/ PR
- midaz buccal/ IM/ intranasal
- diazepam PR
What are second line status epilepticus meds:
No IV:
- fosphenytoin IM
IV:
- fosphenytoin IV in D5W or NS over 5-10 min.
5 minute later= Still seizing: use phenobarb
10 min later= Still seizing= midaz infusion
Still persist= Thiopental
Define GCS:
Four Eyes
- 4= spontaneous
- 3= speech
- 2= pain
- 1= no response
Jackson Five
- 5= oriented
- 4= confused
- 3= inappropriate words
- 2= incomprehensible
- 1= no response
V6 (Motor Strength)
- 6= obey
- 5= move to local pain
- 4= flex to withdraw from pain
- 3= abN flexion
- 2= abN extension
- 1= no response
Child w/ flexion to pain, incomprehensible moan. Eyes don’t open. GCS?
GCS= 7
4 eyes= get 1
Jackson 5= get 2
V6 Motor= 4
Severe h/a and progressive LOC. GCS 6. ABC stable. Tumour on CT. which is LEAST imp in management
- control fever
- analgesia, sedation
- hyperventilation
- hyperosmolar fluid
Hyperventilation
B/C= ONLY if brain herniation (irregular resp, HTN, brady HR, blown pupil, decerebrate or decorticate posturing)
AVOID otherwise.
Neuro PALS Tx:
- maintain BP
- maintain BG
- control temp
- tx ICP
- tx sz
T or F: posterior rib fractures are specific to abuse.
True
Dog bite on hand. Both child + dog vac UTD. Full ROM with mild edema. Tx?
- irrigate w/ antibx sol’n
- irrigate w/ saline
- irrigate w/ saline + cover topical Abx
- irrigate w/ saline + Tx with clavulin prophylaxis
- swab for Cx and tx IV clinda
Irrigate w/ Saline
+ Prophylactic Clav
** DO NOT irrigate puncture wound
** NO swab for fresh wound unless look infected
XR if penetrating injury
If MCP joint, cranial bite or extensive wound then OR debridement.
Assess tetanus immunization, risk of rabies from animal, risk of Hep B from human bite.
F/U in 48 hr
Tooth knocked out in play. Two things in tx?
- *- find tooth = rinse
- insert into socket or cold cow’s milk solution
- go directly to dentist
- R/O other head/facial trauma
Nail puncture through sole of shoe + foot. Organism?
Pseudomonas (aeruginosa)
T or F: low risk of HIV infection in daycare bite.
True
Blunt abdo trauma. List one reason to go to OR for laparotomy:
** free intraperitoneal air
- peritonitis
- evidence of ruptured diaphragm, GI tract etc.
- *- blunt trauma w/ hypotension suspected to be intraperitoneal
What are most common abdominal trauma seen in ED?
Spleen
Liver
Retroperitoneal spared (kidney, pancreas etc.)
Left shoulder pain. Where is the abdo trauma?
Spleen
Lap belt mark. What type of abdo trauma/ injury?
Bowel or mesenteric injury.
T or F: Most kid with stable splenic, hepatic, renal injury from blunt trauma go to OR.
False.
T or F: in GU trauma bladder should ALWAYS be cath.
False.
Usually but DON’T if blood dropping from urethral meatus as indication for potential injury.
Blunt abdo trauma. Gross hematuria. (+) Peritoneal Lavage. Next?
- CT
- XR
- AUS
- Transfuse blood
- Foley
Most correct: Abdo CT
pRBC depend on ABC
NO foley if bleeding from urethral meatus.
What is the most likely long-term sequelae from severe head injury: Sz or LD?
Specific LD.
Severe head trauma if GCS < 9.
Head injury after MVA. No CT or neuro Sx. Intubated w/ IV. 3 Tx?
- continuous monitor VS (esp EtCO2)
- ventilate to maintain normal O2 and Co2
- normal T
- sedation, analgesia
- fluid to maintain normal BP and avoid low BP
- refer
List 4 factors that can cause secondary brain injury after initial traumatic brain injury.
- *1. Hypotension
- Hypoxia
- Hypo /hypercarbia
- Hyperthermia
- Hypo glycaemia
Which palsy do you see with ICP?
6th nerve= can’t move lateral
3rd nerve= dilated pupil, ptosis, down and out protruding eye
What are signs of impending brain herniation
Cushing Triad
- HTN
- brady HR
- irregular resp
Dilated pupil
Extensor posturing
List three steps to manage Raised ICP:
HOB 30 degree midline posturing 3% NS Mannitol Maintain normal BP, BG, T, O2, Co2
What do you do if the brain is herniating?
Hyperventilate until pupil not blown.
100% FiO2
Mannitol or Hypertonic NS
Infant with skull # and suspected abuse. Likely what type of intracranial bleed?
Subdural
Why should ketamine NOT be used in head injury?
- sympathomimetic
- (-) isotropy
- resp suppression
low dose ketamine= catecholamine (sympathomimetic)
= can increase ICP
What do you tell kids about sports after they had acute concussion:
Return to Play
- start at no activity and work way up ladder with 24hr duration
- Progress only if symptom free and if symptom recur then try last step when asymptomatic
- once no symptom x 7-10d then can return to play
Sports game with concussion. How long will he sit out minimum?
1 week
3 step in management epidural hematoma w/ posturing and biown pupil.
HOB 30 degree
hyperventilation with FiO2 100%
Hypertonic saline or mannitol.
Call Neuro Sx
What is the leading cause of death in children?
Injuries
** Specifically leading cause of death from unintentional injury in < 4 y.o. (drowning, suffocation, MVA)
MVA day before. Now orange urine and Cr tripled. Likely dx?
Rhabdomyolysis
- Muscle Pain
- Weakness
- Hematuria
- CK ++
- Myoglobinuria
- Risk:
Lytes imbalance + acute kidney injury