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Congestive heart failure
Condition caused by the heart is unable to handle blood volume coming back to it from either the lungs or peripheral circulation.
Nasopharynx
Located above back of soft palate.
Left ventricle
Pumps oxygenated blood to peripheral circulation via aorta.
Pulmonary artery
One of two arteries that carry venous (oxygen poor) blood from heart to lungs
What type of intubation is preferred with emesis with aspiration?
ETT. LMA or combitube acceptable.
Facial artery
Supplies blood to face, tonsil, palate, and submandibular gland.
Rate of ventricles
20-40
Arrest rhythms
Ventricular dysrhythmias
Rate of SA node
60-100
Review of systems cardiovascular
Headaches, dizziness, nosebleeds, shortness of breath, chest or arm pain, edema.
Dyspnea
Difficulty breathing or breathlessness.
Diabetes mellitus
Metabolic impairment where the body is unable to metabolize glucose properly causing increased blood glucose levels. This prevents the body from metabolizing carbs properly.
Considerations for diabetic patients
Patients with diabetes do not heal as quickly and are more prone to infection. Often placed on antibiotics.
Unmodifiable risk factors for stroke
Male, age 55 or older, two times African American, previous stroke, heredity.
Considerations for obese patients
Use of a large blood pressure cuff, difficult venous access, patients should be treated in upright or semi fowler position.
Lower airway
Trachea, bronchi, lobular bronchi, bronchioles, and alveoli.
Peripheral nervous system
Consists of sensory and motor nerves.
Tidal volume
Normal breathing 500 cc of air is inhaled and exhaled.
Neurons
Nerve cells
Sensory nerves
Receive messages from environment and and conduct messages back to CNS.
Brain stem
Pons, medulla oblongata, midrain
Accessory muscles of respiration
Sternocleidomastoid, scalenes, abs which are most important.
Erythrocytes
Red blood cells
SA node
Located in right atrium. Acts as pacemaker. Produces sinus rhythms.
Treatment for mild allergic reaction
Place patient in upright or reclined position, 100% O2, monitor vitals, Benadryl
Treatment for seizures
IV access, Valium 5mg IV or medazolam 3mg, continue to monitor vitals, activate EMS
Treatment of hypoglycemia
Activate EMS, IV access, measure blood sugar with glucometer, 1 amp of glucose, IV infusion of dextrose or glucogan IM if no IV
Propofol
Mimics barbiturates. Rapidly redistributed and metabolized due to being highly bound to fat.Does not tend to predispose to laryngospasm and has antiemetic properties. Discard after 12 hrs.
MONA
Morphine, oxygen, nitroglycerin, aspirin
Symptoms of heart attack
Chest pain, anxiety, weakness, sweating, cardiac dysrhythmias, drop in blood pressure.
Black
Nitrogen
Halogenated hydrocarbons
Inhalation agents that come in liquid form and are poured into vaporizers that allow for controlled evaporation and release for administration of gas. Sevoflurane, desflurane, isoflurane.
Steroids
Prevent swelling by stabilizing cell membranes and also prevent acute adrenal deficiency and nausea. (Decadron, solu medrol, solu cortel)
Volume of one carpule of local anesthetic
1.7 mL
Mg/cc * 1.7 to get concentration.
Drug reversal agents
Narcan and flumazenil
Anxiolytics
Benzodiazepine family of meds. Cause increased pressure in eye and should be used with caution on patients with glaucoma.
Narcotics
Provide systemic pain control. Respiratory depressant and potential for addiction. May produce drowsiness, euphoria and hypotension. (Morphine, Demerol, fentanyl, remifentanil)
Demerol
Same pharmacological effects as morphine.
Narcotic agonist antagonists
Standard narcan. Narcotics reversible with drugs that antagonize effects. All relieve pain and provide some degree if sedation. (Narcan, talwin, stadol).
Symptoms of stroke
Paralysis, localized weakness, headache, numbness, slurred speech, inability to speak (aphasia), memory loss, dizziness, blindness to one eye, confusion, loss of consciousness, double vision, ataxia.
Symptoms of syncope
Syncope is a loss of consciousness due to sudden sharp, transient drop in blood pressure. This is caused by the shunting of blood flow to extremities by sympathetic nervous system which causes blood to pool in extremities decreasing blood flow to brain. Symptoms include diaphoresis, pallor, nausea, light headedness, and tachycardia
What emergency would a cricothyrotomy typically be performed?
Airway obstruction
Atropine would be given in which emergency?
Symptomatic bradycardia
Adenosine would be given in which emergency?
SVT
Amiodarone would be given in which emergency?
V. Tach
What medications can be given for a sever case of hyperventilation?
Versed, Valium, or Propofol
PVC's are treated with which medicine?
Lidocaine
Epi is given in which two emergencies?
V. Fib and asystole
Max dose of epi for cardiovascular disease pt
.04mg
A beta blocker would be given in which emergency?
Hypertension
A fluid bolus of NS and ephedrine can be given with what emergency?
Hypotension
What medications are used to treat malignant hypothermia?
Dantrolene, IV cold saline (not Ringer's)
Nasopharyngeal airway
When tongue is obstructing airway. Tube is lubricated and passed through the nose into nasal cavity. Sits in oropharynx behind tongue. Well tolerated and can be used on awake pts.
Oropharyngeal airway
Also placed to position tongue in more anterior position. Often interfere with intra oral procedures. Not tolerated well with awake pts.
Laryngeal mask airway (LMA)
Device that sits over top of larynx. Can be placed blindly. Does not protect against aspiration. Inflated with 30cc to create seal.
Endotracheal intubation
End of tube passes through vocal cords and terminates half way between vocal cords and bifurcation of trachea. Important to listen to both lungs after placement. May or May not be cuffed.
Combitube
Generally used for specific emergencies. Both cuffs inflated.
Pts predisposed to bronchospasm
Allergies, asthma, copd, bronchitis
Bronchospasm
Generalized contraction of smooth muscles of small bronchi and bronchioles in lungs causing restriction of air flow of air to and from lungs.
Maximum dose of epi for healthy pt
.2mg
Liver
Protein and lipid synthesis, bio transformation, detoxification and storage of vitamin A, E, D, K, and B12.
Causes of seizures
Liver failure, renal failure, sickle cell disease, brain tumor, meningitis, previous stroke and hypo-hyperglycemia.
Medications to treat seizures
Tegretol, Klonopin, Neurontin, luminal, Dilantin, depacon
Main function of kidneys
Maintain volume and composition of body fluids. Body's main source of filtration and excrete metabolic end products and toxins.
Islets of langerhans
Located in pancreas. Secrete insulin and glucagon. Insulin helps the body store sugar to keep glucose levels in a steady state.
Adrenal glands
Secretes epinephrine and norepinephrine. Controls electrolyte balance and carb metabolism.
Thyroid
Regulates body's basal metabolic rate.
Pterygoid plexus
Network of veins corresponding to 2nd and 3rd parts of maxillary artery
Olfactory nerve
1st cranial nerve that controls smell
Optic nerve
2nd cranial nerve that controls sight
Internal jugular vein
Drains much of blood from head and neck
Purkinje fiber system
Causes muscles of heart to contract. Spreads impulse rapidly along heart muscle.
Brachiocephalic artery
Branches into right common carotid in neck and right subclavian artery in arm.
Hematocrit
% blood volume made up of red blood cells. Men: 42-52% women: 37-48%. Anything below 35% considered anemic.
Mental artery
Supplies blood to chin.
Ischemia
Reduced blood flow in coronary arteries. Lack of oxygen to heart cells weakens, but does not kill them.
Maxillary artery
Supplies blood to maxilla, teeth, sinuses, and portion of nose.
Medulla oblongata
Coordinating region for impulses. The seat of many autonomic centers.
Normal levels of hemoglobin
Males: 13-18 mg/dL
Females: 14-16 mg/dL
Oropharynx
Located between soft palate and epiglottis.
Facial nerve
7th cranial nerve. Supplies motor fibers to muscles of facial expression.
Trigeminal nerve
5th cranial nerve. Supplies sensation to teeth and jaws.
Vagus nerve
10th cranial nerve. Supplies fibers to many parts of body. (Ears, tongue, pharynx, larynx, thoracic/abdominal viscera).
Pulmonary veins
Return oxygenated blood to left atrium from lungs. Only veins that carry oxygenated blood.
Superior vena cava
Drains head, neck, and upper extremities into right atrium.
Adrenal glad
Secretes epinephrine, norepinephrine, and corticosteroids.
Ectopic focus
Displaced central point of origin for cardiac dysrhythmias.
Inferior alveolar artery
Supplies blood to teeth, mandible, lower lip, and chin.
Inferior vena cava
Drains lower extremities and abdominal viscera into right atrium.
Brachial artery
Supplies blood to shoulder, arm, forearm, and hand.
T's of pulseleas electrical activity
Toxins, trauma, thrombosis, tension pneumothorax, tamponade
H's of pulseless electrical activity
Hydrogen ion, hypoxia, hypovolemia, hypoglycemia, hypo/hyperkalemia, hypothermia.
Pulseless electrical activity (PEA)
Normal appearing tracing, but patient has no pulse.
Asystole
Cessation of all contractions. "Flat line" usually follows v. fib or v. tach. Treated with CPR.
Ventricular fibrillation v. fib
Course v. fib with prominent, erratic baseline or fine v. fib with far less pronounced vacillations. No p, qrs, or t. Often precedes asystole.
Class III
Pt has severe systemic disturbance or disease.
Class IV
Patient has a severe, life threatening systemic disorder.
Class V
Patient is moribund with little chance of survival. Surgery is done in desperation.
Class II
Patient has mild to no systemic disturbance. Smokers included.
Class I
Patient has no organic, biochemical, psychiatric, or physiological disturbance.