Clinical care for Emergencies Flashcards
Defined by airway compromise or hypotension, is obviously a true medical emergency and must be rapidly assessed and treated
Anaphylaxis
Systemic hypersensitivity reaction with multisystem involvement of cardiovascular & respiratory
Anaphylaxis
Triggers for anaphylaxis
- Drugs (Antibiotics, NSAIDs, ANY DRUG)
- Food (nuts, shellfish, soy, eggs)
- Additives (sulfites)
- Toxins (insect stings, venom)
- Chemicals (contrast dye, latex)
Pruritis, flushing, urticaria
Throat fullness, anxiety, chest tightness, SOB, lightheadedness
Anaphylaxis
Anaphylaxis
Signs and symptoms begin within ____ mins of exposure
60 minutes
Anaphylaxis
____% will have a reoccurrence within 12 hours after resolution of the first episode
21%
With suspected anaphylaxis, the single most important step in treatment is the rapid administration of:
Epinephrine
2nd line therapies for anaphylaxis
Corticosteroids
Antihistamines
Allergic bronchospasm is treated with:
Albuterol
Drug allergy usually occurs within:
First or second week
Smoke inhalation can be caused by:
Heat
Smoke
Chemicals
Leading cause of smoke inhalation injuries
Fire
Smoke inhalation
Upper airway is usually due to:
Thermal injury
Smoke inhalation
Tracheobronchial tree is usually caused by:
Chemicals in the smoke
Smoke inhalation
Injury to the lung tissue, usually a delayed process.
- Results in alveolar collapse and impaired oxygenation.
- Risk for pneumonia
Parenchymal injury
Caused by breathing toxic substances
Systemic toxicity
Two most relevant gases for systemic toxicity are:
Carbon monoxide
Hydrogen cyanide
Frequent cause of death and most common complication after inhalation injury
Colorless and odorless gas
Affinity for hemoglobin 260 times greater than oxygen
Carbon Monoxide (CO)
Gaseous form of cyanide, colorless and odor of bitter almonds
Difficult to screen for and treatment should be considered in all inhalation injuries
Treatment should be initiated patients who are at risk and who display altered mental status, cardiac arrest or signs of heart failure
Hydrogen cyanide
Gas that can lead to myocardial ischemia
CO poisoning
First step in the treatment of smoke inhalation
Rescue from the source and limit exposure time
Significant burns (>40%) even with an airway that seems intact might require ________ if capability exist due to impending edema and airway compromise
Prophylactic intubation
Therapy used for significant CO toxicity
Hyperbaric oxygen
Sarcomere
Muscle fiber
Rhabdo
Intracellular components
Potassium
Creatine Kinase (CK)
Myoglobin
Striated muscle breakdown
Occurs with injury/necrosis to the muscle fiber
Rhabdomyolysis
Rhabdo
Leakage of extracellular calcium ions into the intracellular space leads to:
Interaction of actin and myosin that ends in muscle destruction
Rhabdo
If large amount of muscle is damaged the myoglobin released can precipitate in:
Kidneys, cause renal damage and obstruction
Causes of rhabdomyolysis
Trauma or muscle compression
Exertional rhabdomyolysis
Non-exertional rhabdomyolysis
Rhabdo caused by:
Trauma, crush injury, prolonged restraints or immobilization, compartment syndrome, electrical injuries
Trauma or muscle compression
Rhabdo caused by:
Individual is not conditioned, hot humid conditions, impaired sweating, seizures and delirium tremens, methamphetamine and cocaine use
Exertional rhabdomyolysis
Rhabdo caused by:
Coma induced by drugs
Medications (statins)
Toxins (snake venom & CO)
Non-exertional rhabdomyolysis
- Muscle tenderness
- Edema
- Muscle weakness
- Dark urine (*Coca Cola urine)
- Altered mental status may occur from underlying etiology
Rhabdomyolysis
Lab hallmark in rhabdomyolysis
Elevation in CK (typically fivefold increase)
Elevation in CK (Hallmark) typically fivefold increase from normal
Urinalysis dipstick positive for blood however no red blood cells on microscopic exam
Electrolyte abnormalities (*Hyperkalemia)
EKG to evaluate electrolyte abnormalities (Hyperkalemia (causes peaked T waves))
Rhabdomyolysis
Treatment for rhabdomyolysis
Large volume IV fluid resuscitation (1.5L/hr)
2ml/kg/hr urine output
When to MEDEVAC a rhabdomyolysis patient?
Altered mental status, temp > 105, or unresponsive to IV fluids
Complications of rhabdomyolysis
Acute renal failure, acute kidney injury Compartment syndrome Electrolyte abnormalities Cardiac arrhythmias Death