Emergency / Critical Care Flashcards
A 27-day-old with fever 103°F for 1day, feeding well, no cough, no vomiting, no diarrhea. Physical examination is normal. What is the next best step?
Full sepsis evaluation (blood, urine and CSF testing) and empiric IV antibiotics
An 8-week-old with fever 103°F for 2days, feeding well, no cough, no vomiting, no diarrhea. Physical examination is normal. What is the next best step?
Complete blood count (CBC), urinalysis and urine culture (infants 38°C should be promptly evaluated)
A 15-month-old with fever 103°F for 2days, feeding well, fussy when fever is high, playful for brief periods after receiving antipyretics, no cough, no vomiting, no diarrhea. Physical examination is normal. What is the next best step?
Reassurance (most likely viral syndrome, advise close follow-up)
Non-toxic, fully vaccinated toddler with nasal congestion has a barky cough, inspiratory stridor when agitated, but no resting stridor. What is the next best step?
Oral dexamethasone (viral croup)
A well-appearing, 12-month-old with upper respiratory infection (URI) symptoms and fever presents with diffuse wheezing on lung auscultation. What is the next best step?
Clearance of nasal secretions and reassurance (acute viral bronchiolitis)
Child with asthma, presenting with chest pain, chest tightness and diffuse bilateral expiratory wheezing in the setting of URI symptoms. What is the next best step?
Albuterol and ipratropium nebulizer treatments with oral steroids
Distressed, vaccinated toddler, with sudden onset of cough and inspiratory stridor while eating peanuts. What is the next best step?
Attention to ABCs (airway, breathing, circulation) and emergent subspecialty evaluation for a suspected foreign body in airway
An unvaccinated child with inspiratory stridor at rest, toxic appearing, leaning forward and drooling. Next best step?
Attention to ABCs (airway, breathing, circulation) and emergent subspecialty evaluation for suspected epiglottitis
Child with peanut allergy presents with diffuse hives and flushed skin after ingestion of peanuts, noted to have hypotension on initial vital signs. What is the definitive treatment for the underlying diagnosis?
IM epinephrine for anaphylaxis
Child presents to the emergency department (ED) with a dog bite. What is the next best step?
Wound cleaning with adequate pressure irrigation
After cleaning the wound of dog or cat bite, what is the most appropriate prophylactic antibiotic?
Amoxicillin/clavulanate, cover both aerobes and anaerobes, especially Pasteurella
Dog or cat bite and allergy to penicillin
Clindamycin plus trimethoprim-sulfamethoxazole
Teenage patient punches another student in the teeth during an altercation at school and sustains puncture lacerations to knuckles; what is the most appropriate prophylactic antibiotic?
Amoxicillin/clavulanate, cover both aerobes and anaerobes, especially Eikenella
A fully vaccinated child with a bite from a stray dog that was not captured. The child was admitted on NPO status due to multiple puncture lacerations requiring surgical repair. What is the next best treatment?
Rabies prophylaxis (rabies vaccine and rabies immunoglobulin) and intravenous ampicillin-sulbactam
Adolescent with pain, redness, and tenderness in the foot after stepping on a rusty nail that punctured the foot. There is no fever and the rest of the exam is normal. Last tetanus vaccine was 7years ago. What is the best treatment?
Tdap vaccine and oral ciprofloxacin Pseudomonas aeruginosa infection
Child with a sudden stinging sensation in the right foot after playing in the basement, within a few hours develops severe pain and enlarging erythema in the right foot, which 2days later becomes a hemorrhagic blister surrounded by an erythematous halo and dark eschar. What is the most likely cause?
Brown recluse spider bite (local pain, necrosis, and less systemic manifestations)
Child presents with sudden pinching sensation in the foot after playing in the basement, within 8h develops muscle cramping in the right leg, which progresses to the back and abdomen. O/E: elevated blood pressure, tachycardia, tender abdomen, target-like appearance redness in the foot. What is the most likely cause?
Black widow spider bite (initial pinch or pinprick sensation, or unnoticed bite followed by significant systemic manifestations, muscle cramping, tachycardia, and hypertension)
Child stung on the left arm by a wasp, having pain, itching, erythema, and mild swelling in the left arm without any signs of systemic illness. What is the best treatment?
Removal of the stinger, application of cool compresses or ice packs, and mild oral analgesics and oral antihistamines to help alleviate pruritus
A 1-year-old falls
Reassurance (very low risk of clinically significant traumatic brain injury [height of fall in 3ft is a high risk])
A 3-year-old falls
Reassurance (very low risk of clinically significant traumatic brain injury [height of fall in >2years of age >5ft is a high risk])
A 6-year-old boy fell and hit his head while running, loss of consciousness for 30s, one-time vomiting, headache that has slightly improved in the last 30min. Physical examination is normal except mild swelling in the forehead. What is the next best step?
Observation period 4–6h in ED
Child brought to the ED after severe head trauma, continues to have persistent vomiting and altered level of consciousness. What is the next best step?
Attention to ABCs (airway, breathing, and circulation)—the child needs CT head but first requires stabilization
A 6-year-old boy fell and hit his head, loss of consciousness for 2min, progressive headache, persistent vomiting. Physical examination is normal except mild swelling in the forehead. What is the next best diagnostic test?
Head CT scan without contrast
A 6-year-old boy fell and hit his head, loss of consciousness, headache, vomiting, improvement for few hours (lucid interval) followed by deterioration of symptoms and loss of consciousness. CT head shows hyperdense lenticular-shaped mass situated between the brain and the skull. Most likely diagnosis?
Epidural hematoma—convex toward the brain and restricted by suture lines in CT scan
Head trauma, severe headache, and drowsiness. Head CT scan showed hyperdense (white), crescent-shaped mass between the inner table of the skull and the surface of the cerebral hemisphere. Most likely diagnosis?
Subdural hematoma—concave toward the brain and unlimited by suture lines in CT scan
Head trauma, bleeding from the ear, hearing loss, and facial paralysis. Most likely injury?
Temporal bone fracture
Head trauma, ecchymosis behind the ear (battle sign), periorbital ecchymosis (raccoon eyes), abducens nerve paralysis. Most likely injury?
Basilar skull fracture
Glasgow Coma Scale (GCS) of a child after head trauma who opens eyes only to sound, makes a few unintelligible sounds but does not say words, and localizes to pain
GCS = 10 (3 E/2 V/5 M)
Effect of clonidine, cholinergic, opiates, organophosphates, phencyclidine, phenothiazine, pilocarpine, and barbiturates (sedatives) on the pupil
Miosis
Effect of atropine, antihistamines, antidepressants, amphetamine, and cocaine on the pupil
Mydriasis
Ingestion of which agents can cause seizures, hyperthermia, agitation, decreased urine output, anhidrosis, flushing, and mydriasis?
Anticholinergic agents (e.g., Atropine , amitriptyline, diphenhydramine, jimson weed, or deadly nightshade)
Ingestion of which agent can cause pinpoint pupils, unresponsiveness, and respiratory depression?
Opiate intoxication
What is the treatment of choice for opiate poisoning?
Naloxone
Child presents with neck spasms, oculogyric crisis, and tongue thrusting after accidental ingestion of promethazine (anti-nausea medication). What is the drug of choice to treat these symptoms?
Diphenhydramine; the patient has an acute dystonic reaction
Child ingests a large amount of a grandparent’s medicine, presents with hyperventilation, metabolic acidosis, high-anion gap, tinnitus, and confusion. Likely ingestion?
Aspirin
Healthy child ingests caretaker’s medicine, presents with altered mental status, seizure, drowsiness, lethargy, sinus tachycardia, widened QRS, prolonged QT interval. Likely ingestion?
Tricyclic antidepressants (TCA) toxicity
Adolescent currently on SSRI treatment for depression presents with confusion, sweating, and myoclonus admits to trying ecstasy at a party. Likely cause of symptoms?
Serotonin syndrome—hallmark is myoclonus Occurs with: monoamine oxidase inhibitor (MAOI) and linezolid
Child is brought to the ED after ingesting numerous pills of metformin. Possible laboratory finding?
Lactic acidosis