Chapter 8 Flashcards
What are some indicators of an emergency situation which should be reported to the surgeon or anesthesiologist right away?
-Difficulty breathing
-Chest pain
-Changes in skin color
-Changes in vital signs
-Open bleeding wounds or visible punctures not indicated on the patient’s chart
-Inability to move an extremity
-Misshapen/misaligned body part
-Disorientation or confusion
-Severe cephalagia (headache)
What is the objective of emergency care/trauma surgery?
to preserve life, to prevent further deterioration of patient condition, and then to provide whatever care necessary to restore the patient previous lifestyle.
What is the pattern of priorities in an emergency situation?
- Provide patent airway/restore breathing
- Cardiovascular status/hemostasis should be maintained
- Treatment for
Chest injuries
-Shock
-Wound protection/closure
-Fractures
-Vital sign monitoring
-Provision of reassurance and comfort for the patient
is provided.
(CABDs
C-cardiopulmonary resuscitation
A-airway
B-breathing
D-definitive treatment)
When does clinical death begin?
The moment heart action/breathing stops. Pt has 4-6 mins before brain cells deteriorate. Breathing/circulation should be restored in this time frame before biological death.
What are the warning signs of impending cardiac arrest?
-Chest pain (in the awake patient)
-Unstable blood pressure
-Tachycardia
-Cardiac dysrhythmias
-Respiratory changes
-Hypovolemia
-Laryngospasm
What is the chain of survival concept applied to cardiac arrests?
ABCs—airway, breathing, and circulation—as well as providing the “D,” definitive treatment.
What does successful resuscitation require?
-Early recognition of cardiac arrest.
-Early activation of trained responders.
-Early CPR.
-Early defibrillation.
-Early advanced cardiac life support (ACLS).
What is the sequence of BLS
C-chest compressions
A-airway
B-breathing
What is the chain of survival for BLS?
Immediate recognition of cardiac arrest and activation of the emergency response system (ERS).
Early CPR that emphasizes chest compressions.
Rapid defibrillation.
Effective advanced life support.
Integrated post–cardiac arrest care.
How often does the STSR have to renew their CPR/BLS certification?
Every 2 years
What is ventricular fibrillation?
Something that many who go into SCA experience. VF demands early CPR and defibrillation.
What role does each OR team member have in a code?
Anesthesia: provide airway monitoring, IV access, and pressure/gas monitoring
Circulator: get crash cart/supplies/provide support to dr
Surgeon: continue surgery to safe “stopping point”
CST: protect sterile field unless aid needed in resuscitation.
What is Malignant Hypothermia (MH)?
Life-threatening acute pharmacologic disorder developed during/after anesthesia.
What does MH cause?
Potentially fatal hypermetabolic state of muscles bc of defect in calcium transportation in skeletal muscle fibers. muscles are stimulated to contract but can’t bc of buildup of calcium.
What are some triggers of MH?
-genetics (usually males)
-halogenated inhalation (curane, succinylcholine)
-strenuous exercise, stress, and trauma
-diagnosed via crisis, biopsy, or family history
What are the signs of malignant hypothermia?
-unexplained tachycardia and tachypnea
-increased levels of CO2
-unstable BP
-perspiration
-muscle contraction
-mottled skin
-high temperature (as high as 107)
What is the emergency protocol for malignant hypothermia?
- retrieve the emergency cart
- discontinue the triggering agent (administer a non-triggering one)
- administer 100% o2
- administer dantrolene sodium
- introduce chilled IV, ice packing, and chilled saline
- administer sodium bicarbonate, dextrose and insulin, furosemide/mannitol, and heparin
What are some components of Dantrium/Revanto
(Dantrolene Sodium-muscle relaxant)
-36 vials a facility ($3500 total cost)
-3 yr shelf life
-needs to be reconstituted
-load dose of 2.5mg/kg
-1mg/kg every 5 mins
-max dose 10-30 mg/kg
What is the dosing for Dantrium/Revento?
-2.5 mg/kg (68 kg/20 mg)= # of vials needed
-2.5 (68/20)= 8.5 vials
-Max dose: 68 kg x 30mg/1kg= 102 vials
What are some components of Ryanodex? (dantrolene sodium-muscle relaxant)
-3 vials a facility (total cost $7000)
-2 yr shelf life
-needs to be reconstituted
-vials at 250 mg
-1 load dose
-4-12 max
What is Disseminated Intravascular Coagulation? (DIC)
Pathological process in the body that occurs when blood begins to coagulate within the body.
-body’s blood clotting mechanisms are activated throughout the body
-leads to the consumption of all coagulation factors and platelets
-leads to the overstimulation of fibrinolytic degradation which acts as anticoagulants
-initial hypercoagulation is replaced with hypocoagubility and hemorrhaging.
What are the factors that stimulate disseminated vascular coagulation?
-infection of blood (bacteria or fungus)
-severe tissue trauma
-leukemia/cancer
-severe liver disease
-recent blood transfusion reaction
-obstetric complication
How do you treat DIC
-determine and treat the underlying cause
-fresh, frozen plasma to replace coagulation factors
-cryoprecipitate
-heparin may be administered
What is an anaphylactic reaction?
An exaggerated allergic reaction to a protein or substance.
What is the first line drug used to treat an anaphylactic reaction?
Epinephrine
-creates bronchodilatation
-reduces laryngeal spasm
-raises bp
What are the common causes of anaphylactic reactions in the OR?
-local anesthesia
-codeine
-antibiotics
-animal-derived drugs
-contrast media
-latex
What are the signs and symptoms of an anaphylactic reaction?
-mild inflammatory symptoms (hives, itching)
-progresses into bronchospasm and laryngeal edema.
-vascular collapse (hypotension, tachycardia, diminished urine output)
-finally becomes anaphylactic reaction
How is an anaphylactic reaction treated?
-supplemental O2 is provided to prevent respiratory arrest
-epi is administered
-steroids are administered (stabilize mast cells and stop chain of events)
-IV and plasma to restore fluids
-vasopressive agents (increase bp)