Acute Care/ED SAQ Flashcards
- A 15 year old male collapses while playing basketball. CPR is initiated, emergency responders intubate the patient. You see the following rhythm strip:
[Vfib]
A. What does the rhythm show?
B. What are TWO treatments you should institute?
C. What is your compression ratio per minute?
D. What is your ventilation ratio per minute?
A. Ventricular fibrillation
B.
- Defibrillation: first shock 2J/kg, second shock 4J/kg. Then >=4J/kg, max 10J/kg
- Obtain IV/IO access and give epinephrine
C. 100 bpm
D. 10 breaths per min
- A boy is involved in an MVC. He was intubated by the ED doctor. He now develops bradycardia, hypertension and a dilated pupil. List 4 steps in your treatment
- Elevate head of the bed up to 30 degrees with head in the midline position
- Hyperventilate to pCO2 25-30
- Give 3% NS 5mL/kg
- Sedation and analgesia. Avoid ketamine b/c of increased ICP
- Do CT head once stable
- A three year old boy is brought to the emergency room after extrication from a house fire. He was found in a smoky room.
a) What three clinical features would make you think the has upper airway inhalational injury?
b) What is your immediate intervention?
A.
- Soot in the nares, mouth or carbonaceous sputum
- Singed eyebrow or facial hair
- Stridor, WOB, tachypnea
B. Intubate
Table given with medications. Write “increase” “decrease” or “none” for effect of the following on (a) contractility, (b) PVR, (c) SVR
A. Epi 0.05 mcg/kg/min
low
B. Epi 0.5 mcg/kg/min
intermediate
C. Dopamine 20 mcg/kg/min
D. Dobutamine
Epi 0.05mcg/kg/min (low dose) - B2>a, B1
a) contractility - increase - B1
b) PVR - no effect
c) SVR - decrease - B2
Epi 0.5mcg/kg/min (intermed dose)- a>B2, B1
a) contractility - increase
b) PVR - increase
c) SVR - increase -a
Dopamine 20mcg/kg/min - a,B1
a) contractility - increase
b) PVR - increase
c) SVR - increase
Dobutamine - B1, B2
a) contractility - increase
b) PVR - none
c) SVR - decrease
- Kid with Methanol toxicity. Na 140, K 4, Cl 96, Bicarb 11, BUN 11, Glucose 4, Serum osmolarity–396
a) Calculate anion gap. Show calculations:
b) If anything, What would you expect of the osmolar gap?
c) What is the long term complication of methanol toxicity
d) What is one med to treat methanol toxicity
A) Na - (HCO3 + Cl) = 140 - (11 + 96) = 140 - 107 = 33
B) High >10
Calculated osmolarity = 2(140) + 4 +11 = 280 + 15 = 295
OG = measured - calculated = 396-295 = 101!
c) Ocular toxicity/blindness
d) Fomepizole
High Osmolar gap
PIE ME
P - polyethylene glycol, propylene glycol
I - isopropyl alcohol (no acidosis)
E - ethanol
M - methanol, mannitol
E - ethylene glycol
2 patients have arrived at the same time in the ED:
Patient 1 – 8yo boy with asthma attack, resp distress and tracheal tug. RR 36 PCO2 28.
Patient 2 – 8yo boy with asthma attack, resp distress and tracheal tug. RR 20 PCO2 38.
(no other info was given)
Which patient do you see first? (2 points)
Explain your choice (2 points)
Patient 2
Lower RR and “normal” pCO2 indicates that this patient is in impending respiratory failure and tiring out.
Compensated asthmatic should have tachypnea and hyperventilation with low pCO2
A 4 year old boy fell off a park bench onto concrete a few hours ago. He did not lose consciousness but vomited a few times since. His GCS in the ER is 14.
a. What are 5 indications for a CT head in this patient?
Mild TBI = CATCH rules
GCS 13-15 in previous 24H and witnessed LOC, amnesia, witnessed disorientation, persistent irritability (in <2yo), or persistent vomiting (>1X) AND
WIGS
- Worsening h/A
- Irritability on exam
- GCS <15 after 2H of observation
- Suspected depressed skull #
- Any sign of basal skull #
- Large, boggy scalp hematoma
- Dangerous mechanism
- MVC
- Fall from 3ft or 5 stairs
- Fall from bike without helmet
Absolute indications
- Focal neurological exam
- Suspected open or depressed skull # or widened or diastatic skull # on Xray
Relative indications
- GCS <14 at any point from time of initial assessment onward OR GCS <15 at 2H aftr injury
- Clinical deterioration over 4-6H of observation in ED
- Sz at time of event or later
- known coagulopathy
- Projectile (gunshot or metal fragment)
- Plus the ones in CATCH
- A child was at a restaurant 1.5 hours ago and had a hamburger + drink. Shortly thereafter, he was noted to be drooling and not tolerating his own secretions at all. You do an X-ray and find a Twoonie stuck in the upper 1/3 of his esophagus. You consult GI/surgery for urgent scope + removal.
a. How soon is the soonest you can safely proceed with the removal as per anesthesia
b. What are 3 indications for urgent removal of an esophageal foreign body?
a)Aspiration risk anyway, since not handling secretions, go now
- If tolerating secretions. NPO now. 8H post last meal, so in another 6.5H
- clear fluids okay up until procedure
- breast milk 4H
- formula 6H
- solid food 8H
b)
- Battery
- Sharp foreign body
- Any signs of resp compromise, esophageal perforation, or complete esophageal obstructions
- Two magnets
- Kid comes into ED not using his arm after mom pulled hard to get his sweater off.
a. What is the diagnosis (be specific)
b. What is the anatomic abnormality/finding
c. How will you reduce it? guidelines given his NPO status?
A. Nursemaid elbow
B. Subluxation of the annular ligament (wraps around ulna, radial head, and proximal ulna)
C. Reduce by rotating forearm into supination while holding pressure over radial head
- feel palpable click
- recovers immediately
- no need to immobilize
Do not need NPO because surgery rarely indicated, even if irreducible (tend to resolve spontaneously over days to weeks)
Usually in <5yo
Produces immediate pain + limited supination
Normal flexion + extension, typically no swelling
- 16 year old boy had femur fracture following skateboarding (poor kid!). Now in a cast with traction, and on day 4 develops respiratory distress, with oxygen sat 84%. Name 2 likely causes. What 1 investigation would you do?
A. Likely causes
- Fat embolism
- pneumonia
- PE
- Pneumothorax
- Atelectasis
B. spiral CT chest
- 2 yo girl was bitten by a dog in the playground and has an open wound on her right thumb. What are FIVE things to do in her management. She is fully immunized.
- Examine for neurovascular damage
- Clean the wound with saline. Leave open to drain
- Start amoxicillin-clavulin (3-5d for ppx or 7-10d for Tx of infected looking tissue)
- Report dog to public health. Determine if dog is rapid. If unsure, can give rabies vaccine and immunoglobulin
- Pain control. Consider local anesthesia.
Note: do not need tetanus Ig if she is fully immunized and received 3 doses of tetanus, even for “all other wounds”
- Contaminated with dirt, soil, feces, saliva (animal bites)
- Deep puncture
- Avulsion
- Injury due to missile, crush, burn, frostbite
When is ABx prophylaxis indicated? Also reasons for leaving wounds open.
- Deep puncture wounds (esp cat bites)
- Mod-severe wounds due to crush injury
- Wounds in areas of underlying venous +/ lymphatic compromise
- Wounds on hand(s), genitalia, face, or in close proximity to bone or joint (esp hand and prosthetic joints)
- Wounds requiring closure
- Bite wounds in compromised hosts (immunocompromised, functional/anatomical asplenia)
- Child in status for a while, ABC stable, IV inserted. What ONE thing do you do initially? What are FOUR other steps if step one doesn’t stop the seizure.
A. Lorazepam 0.1mg/kg IV
B.
1. Give Second dose of lorazepam 0.1mg/kg IV within 5min
2. If still seizing, give Fosphenytoin load 20mg/kg IV
3. If still hasn’t stopped in 5min, Phenobarbital load 20mg/kg IV
4. Consult PICU + Neuro, midazolam infusion
5. Check glucose if not mentioned in stem. Start thinking about causes of the seizure.
- 16 yo girl with an MVA. Was intubated at the scene because GCS 6. HR 142, BP 85/54, Sa O2 94% on 50% fio2. PERL and 4 mm. What are the two likely causes of her presentation? List three things you would do for her immediate management
A. Likely causes
- Diffuse axonal injury
- Intracranial hemorrhage
B. Immediate management
- Activate trauma code. Do trauma survey. Ensure that she is in a C-spine collar.
- Establish IV/IO. Give NS 20mL/kg, reassess response and repeat as necessary. Consider inotropic support. Aggressively manage the hypotension.
- Order blood.
- CT of areas of suspected injury
- A. Name two things you would see on an EKG that would make you think of hyperkalemia.
B. What are three treatments you would start if you confirmed hyperkalemia causing EKG changes.
A. ECG findings of hyperkalemia
- Peaked T waves
- Increased PR interval >200ms. Eventual loss of P wave
- Widened QRS >120ms
- Sine wave pattern
- V fib
B Management
- Stop all sources of additional potassium
- Ventolin nebs
- Insulin (with glucose)
- Calcium carbonate (stabilize heart cell membranes, prevent arrhythmias)
- Bicarbonate (causes K to move into cells; most effective if metabolic acidosis)
- Loop diuretic - furosemide (renal excretion of K)
- Kayexelate (exchanges Na on resin for K, K excreted)
- Dialysis
- Kid with concussion, name 3 advice you would give
- Complete cognitive and physical rest. Follow graduated return to learn and return to play guidelines.
- Must return to learn and have 7-10d Sx free and fully back to school before starting return to play.
- Each step should take at least 24H. If any Sx, need to rest for at least 24-48H before trying again at last step without Sx
- Antiemetics + analgesia for supportive management
- Given a scenario of a child, give the 3 components of GCS and calculate the score
Child
- E
- 4: opens spontaneously
- 3: opens to voice
- 2: opens to pain
- 1: no opening
- V
- 5: oriented
- 4: confused
- 3: inappropriate sounds
- 2: incomprehensible sounds
- 1: no speech
- M
- 6: follows commands
- 5: localizes to pain
- 4: withdrawal to pain
- 3: decorticate (flexion posturing) to pain
- 2: decerebrate (extension posturing) to pain
- 1: no movement
Infants
- E: same
- V
- 5: cooes, babbles
- 4: irritable, cries
- 3: cries to pain
- 2: moans to pain
- 1: no sounds
- M
- 6: moving spontaneously + purposefully
- 5: withdrawals in response to touch
- 4: withdrawals in response to pain
- 3: flexion decorticate to pain
- 2: extension decerebrate to pain
- 1: no movement
- Boy from a burning fire has high level of lactic acidosis, besides severe hypoxemia, name 3 other causes of the lactic acidosis?
- Tissue hypoperfusion after burns
- Cyanide
- Carbon monoxide toxicity
- Hypovolemic shock due to increased fluid losses after burns
- Sepsis (more prone to infection after burns)
- Boy from trauma, with cushing’s vitals
a) What mode of ventilation would you use?
b) Explain why?
A. Conventional ventilation. SIMV-PRVC
B. Volume guarantee method to ensure tight CO2 control (35-40). Ensure no obstruction to venous drainage. Ensure adequate PEEP + FiO2 to maintain oxygenation (SpO2 >94%)
- 3 things you can tell the team to ensure quality CPR
- Push hard = 1/3 AP diameter (5cm children, 4cm infants)
- Push fast = 30:2 if 1 rescuer, if child with 2 rescuers then 15:2. 100-120bpm
- Allow for recoil
- Minimize breaks in compressions
- Avoid excessive ventilations. Give rescue breaths over 1s, should result in visible chest rise
Note:
- If EtCO2, aim for >10-15
- ROSC identified when rises abruptly to 40
- Arterial waveform if have art line. Can use for feedback on hand position + chest compression depth.
- Teen with trauma from sport 2 days ago, presents with erythema around the umbilicus and epigastric pain
a) Name 2 diagnoses
b) Name 2 tests
A. 2 diagnoses
- Splenic laceration
- Pancreatic injury
B. 2 tests
- CT abdomen
- Bloodwork: lipase, amylase, liver enzymes, CBC
- Cullen’s sign: periumbilical ecchymosis
- Grey Turner’s sign: flank ecchymosis (blood tracking subcutaneously from retroperitoneal or intraperitoneal source)
- Non-specific findings that suggest retroperitoneal bleeding in setting of pancreatic necrosis
- Patient presents in DKA with a glucose of 21, pH 7.1 and HCO3 9. He is started on treatment with NS + 40 meq/L of KCl at an appropriate rate. One hour later repeat blood work consists of Glucose 9.3, pH 7.2, HCO3 10. What change in management would you make (if any)? (1 line)
- Start insulin 0.1 units/kg/hr IV (if not already on it)
- Add D5W as BG <15. Can change to D5NS+40mEq/L of KCl depending on lytes. Monitor for hyperchloremic metabolic acidosis
- Goal of serum osmol change by no more than 2-3 mmol/hr decrease
- 12 yo boy collapses on a school field while playing sports, brought to the ER. A EKG is given – shows a wide complex tachycardia (V.fib/V.tach). CPR is initiated. The patient is intubated and has an IV.
a. What 3 most important medications/interventions in the first 5 minutes of ER care?
b. What is the rate of chest compressions in this patient?
c. What is the rate of ventilation?
a) A. Most important interventions
- Good quality CPR
- Adequate ventilation + oxygenation
- Defibrillation: first shock 2J/kg, second shock 4J/kg
- Epinephrine 0.01mg/kg (0.1mL/kg of 0.1 mg/mL)
- 100 bpm
- 10 breaths per min
- MVC and head injury – BP 100/60 and HR falls from 110 to 70 – management
- Elevate HOB to 30 deg
- Keep head in midline
- Intubate with RSI
- Hyperventilate to pCO2 25-30
- 3% NS 5mL/kg
- Sedation, analgesia, muscle relaxant. Avoid ketamine b/c may increase ICP
- Avoid hypoxemia
- Maintain ventilation with PCO2 35-40
- Aggressively manage hypotension
- Maintain normothermia
- Get CT once stable