Sa node rate 60 100 bpm Study guides, Class notes & Summaries

Where are Beta 1 receptors found? Answer - Heart and Kidneys Stimulation of Beta 1 receptors result in an increase of what? Answer - Heart: Inotropy, Chronotropy, Dromotropy Kidneys: Renin-Angiotensin-Aldosterone System = Vasoconstriction = Increase blood pressure Which node is located at the junction of the superior vena cava and the right atrium, is typically supplied by the Right Coronary artery, and fires at a rate of 60-100 bpm. Answer - SA Node Atrial depolarization characteriz...

What are the 6 parts of the cardiac conduction cycle? correct answer: -SA node -Internodal pathways -AV node -Bundle of His -R and L bundle branches -Purkinje fibers What is the SA node? correct answer: -Small cluster of cells located in the upper R atrium *-Pacemaker of the heart* What are internodal pathways? correct answer: Impulses sent by the SA node that travel through the atrial muscle fibers via the intra-atrial pathways Allows for simultaneous depolarization and contra...

normal specific gravity correct answers 1.010-1.030 polyuria correct answers 2,500 mL/24hr Oliguria correct answers <400mL/24hr Anuria correct answers <100mL/24hr Serum Creatinine (SCr) correct answers 0.6-1.2 mg/dL somewhere around 1 Normal Urea correct answers 10-20mg/dL Normal BUN correct answers 10-20 mg/dL Normal BUN:Creatinine ratio correct answers 6-25 normal BUN is 10-20 normal creatinine is 0.6-1.40 so 10-20:0.6-1.40 is the ratio I think. so either 10...

Normal Conduction System -ANSWER -SA Node = Primary Pacemaker of the Heart, rate of 60-100 bpm -Internodal Pathways = Pathways connecting SA Node and AV Node -AV Node = Backup pacemaker, rate of 40-60 bpm -Bundle of His = splits nerve fibers down Left & Right Sides, His-Purkinje is conduction system of heart -L & R Bundle Brancehs = lead to left & right of the myocardium -Purkinje Fibers / Network = ends of the muscle, last escape pacemaker sites rate of 14-40 Tele Strip Paper -ANSWER ...

Intrinsic rates - ANSWER-SA node - 60 - 100 bpm AV junction - 40 - 60 bpm Purkinje network - 20 - 40 bpm Lidocaine doses - ANSWER-1-1.5 mg/kg, second dose 0.5-0.75 mg/kg Unstable VT tx - ANSWER-Should be treated with synchronized cardioversion Hypotension, decreased LOC, shock, chest pain Stable VT tx - ANSWER-IV/IO Adenosine 6mg; 12mg (followed by rapid saline flush) If ineffective, procainamide (20-50mg/min or amiodarone (150mg IV/10min) Consider antiarrhythmic infusion Defi...

Dysrhythmia correct answer: Any disorder of the heart beat or heart rhythm. Cardiac output is impaired. Cellular oxygenation is then also impaired Electrical problem will definitely effect the mechanical but a mechanical problem may not effect the electrical. Explaining dysrhythmias correct answer: -Classified to their site of origin -SA node atrial tissue, AV node, junctional tissue (tissue around AV node), and ventricular tissue -Caused by a disturbance in impulse formation or b...

Fisdap Cardiology ExamWhere are Beta 1 receptors found? Correct Answer: Heart and Kidneys Stimulation of Beta 1 receptors results in an increase of what? Correct Answer: Heart: Inotropy, Chronotropy, Dromotropy Kidneys: Renin-Angiotensin-Aldosterone System = Vasoconstriction = Increase blood pressure Which node is located at the junction of the superior vena cava and the right atrium, is typically supplied by the Right Coronary artery, and fires at a rate of 60-100 bpm. Correct Answ...

Normal Conduction System -ANSWER -SA Node = Primary Pacemaker of the Heart, rate of 60-100 bpm -Internodal Pathways = Pathways connecting SA Node and AV Node -AV Node = Backup pacemaker, rate of 40-60 bpm -Bundle of His = splits nerve fibers down Left & Right Sides, His-Purkinje is conduction system of heart -L & R Bundle Brancehs = lead to left & right of the myocardium -Purkinje Fibers / Network = ends of the muscle, last escape pacemaker sites rate of 14-40 Tele Strip Paper -ANSWER -S...

P wave - ANSWER Depolarization of the atria PR interval - ANSWER -Normal is 0.12 to 0.2 seconds - onset of atrial depolarization until onset of ventricular polarization QRS complex - ANSWER -Normal is 0.06 to 0.11 seconds -Ventricular depolarization -systole T wave - ANSWER -appears after QRS complex - Ventricular repolarization -Spiked T-wave occurs with hyperkalemia U wave - ANSWER - repolarization of the purkinje fibers - seen in patients with hypokalemia SA node - ANSWER...

REMSA EMT Division 2 Latest Update Rated A MI typical presentation -chest pain that won't go away -pain in chest, jaw, back, shoulders, crushing, heavy pressure -SOB, diaphoresis, pulmonary congestion -nausea and vomiting -skin cool and clammy -sense of impending doom Hemophilia hereditary disease where blood does not coagulate to stop bleeding -genetic disorder, usually effects men, X chromosome carrier Hemophilia A: factor 8 deficiency (effect clotting cascade) Hemophilia B: factor 9 defici...