i need the answer quickly 9. A 16-year-old-girl is found to have paroxysmal attacks of rapid heart rate. Theantiarrhythmic of choice in most cases of acute AV nodal tachycardia is;(a) Adenosine(b) Amiodarone(c) Flecainide(d) Propranolol(e) Quinidine

AV-Nodal Reentrant Tachycardia is a medical condition in which the heart rhythm becomes unusually…

Answered: 9. A 16-year-old-girl is found to have…

Fundamentals of Sectional Anatomy: An Imaging Approach

2nd Edition

ISBN:9781133960867

Author:Denise L. Lazo

Publisher:Denise L. Lazo

Chapter5: Thorax

Section: Chapter Questions

Problem 4RQ

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A characteristic of blood circulation through or to the heart is that: a. the superior vena cava conveys blood to the head. b. the inferior vena cava conveys blood to the right atrium. c. the pulmonary arteries convey blood from the lungs to theleft atrium. d. the pulmonary veins convey blood into the left ventricle. e. the aorta branches into two coronary arteries that conveyblood from heart muscle.
An electrical difference across the fibers of the heart is called the A. Absolute refractory period B. Resting membrane potential C. Action potential D. Depolarization
Which of the following slows the heart rate and AV conduction? A. Resting membrane potential B. Parasympathetic nervous system C. Pacemaker D. Phase 0
17. Match the ECG wave information with the appropriate action potential in the following columns: a.P wave e.Depolarization of the AV node b.QRS complex f.Repolarization of ventricles c.PR segment g.Depolarization of ventricles d.T wave h.Depolarization of the atria Match the itmes in the left columns to the right columns.
1- A. How is the blood in the pulmonary artery and pulmonary veins different from the blood in the other arteries veins? B. Describe one SIMILARITY and one STRUCTURAL DIFFERENCE between AORTA and VENA CAVA 2- Kathleen decided to donate blood to the Canadian Red Cross. After donating blood, her blood pressure reading was 140 mm Hg / 95 mm Hg. Is this an example of hypotension OR hypertension? What are TWO possible side effects Kathleen may experience? EXPLAIN why she may experience them
4. Pathophysiology of cardiac arrhythmia?
1. If an embolus formed in the left ventricle, it would be able to pass through: ____________________ 2. It would occlude: ______________________________
1. The source of the electrical currents that you measured on the skin throughout a normal electrocardiogram is: a. regional differences in depolarization state between parts of the myocardium b. The SA node cells c. the opening and closing of the tricuspid and bicuspid valves d. depolarizations of the muscle and nerve cells close to the electrode site e. The AV node cells 2. Release or discharge from which of the following is likely to produce a slowing in the rate at which the AV node transmits a depolarization? a. Your coffee cup (caffeine) b. the posterior lobe of the pituitary gland (Oxytocin) c. the sympathetic nervous system d. the parasympathetic nervous system (vagus nerve) e. the medulla of the adrenal gland (epinephrine) 3.Which of the following is unlikely to affect the force of contraction of an individual ventricular myocyte (muscle cell)? a. the amount of…
5. Which statement regarding the use of rocuronium is true? A) It has more rapid onset than vecuronium B) It has the same mechanism of action as succinylcholine C) It is the least cardiac stable neuromuscular blocking agent D) It has a significantly longer duration than vecuronium?
40. The period of ejection: A. begins with closure of the AV-valves and ends with opening of the AV-valves B. begins with opening of the aortic valve and ends with closure of the aortic valve C. begins with the P-wave and ends with the QRS-complex D. begins with the QRS-complex and ends with the T-wave
4. A 54-year-old woman is brought to the emergency department because of a 30-minute history of severe chest pain. Her temperature is 37C (98.6F), pulse is110/min, respirations are 20/min, and blood pressure is 70/40 mm Hg. Physical examination shows cold, clammy skin. There is no urine output. Cardiac catheterization shows occlusion of the anterior interventricular (left anterior descending) artery and a markedly decreased cardiac output. A decrease in which of the following is most likely in this patient?A.Arterial H+ concentration O B. Mixed venous oxygen tension C. Pulmonary artery pressure D. Serum angiotensin |I concentration E. Serum epinephrine concentration F. Tissue lactate production
1. If an embolus formed in the left ventricle, it would pass through:2. it would occlude:

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9. A 16-year-old-girl is found to have paroxysmal attacks of rapid heart rate. The antiarrhythmic of choice in most cases of acute AV nodal tachycardia is; (a) Adenosine (b) Amiodarone (c) Flecainide (d) Propranolol (e) Quinidine