Sa node rate Study guides, Class notes & Summaries
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ADVANCED ARRHYTHMIA EXAM PREP WITH 100% CORRECT ANSWERS ALREADY GRADED A+.
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Conduction System 
SA Node 
AV Node 
Bundle of His 
Right and Left bundle branches 
Purkinje Fibers 
 
 
 
SA Node 
primary pacemaker 
rate 60-100 
 
 
 
 
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AV Node 
slightly delays impulse from atria to ventricles 
 
 
 
Bundle of His 
conducts impulses to left and right bundle branches 
 
 
 
Purkinje Fibers 
relay impulses to ventricular myocardium 
 
 
 
Depolarization ...
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EKG Clep Test Q&A
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EKG Clep Test Q&A 
 
Question 1 of 50 CORRECT 
A normal QRS should be less than .12 seconds 
 
Question 2 of 50 CORRECT 
Identify the rhythm: 
 
Question 3 of 50 CORRECT 
At Houston Healthcare a nurse who is deemed competent in rhythm interpretation is required to sign off his/her strips every shift. 
 
Question 4 of 50 CORRECT 
Identify the rhythm: 
 
Question 5 of 50 CORRECT 
This picture represents (select two): 
 
 
 
 
Question 6 of 50 CORRECT 
Identify the rhythm: 
 
 
Question 7 of 5...
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PCT NHA Exam Questions and answers, 100% Verified. Graded A
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PCT NHA Exam Questions and answers, 100% Verified. Graded A 
 
 
1. The lavender-topped tube contains: 
a. No additive 
b. SPS 
c. Na+ citrate 
d. EDTA - -d. EDTA 
 
1. The additive in a gray-topped tube is: 
a. K+ oxalate 
b. Na+ citrate 
c. EDTA 
d. None of the above - -a. K+ oxalate 
 
1. Which of the needle has the largest gauge? 
a. 16 g 
b. 20 g 
c. 21 g 
d. 25 g - -a. 16 g 
 
1. Which of the following gauge needle is used for the typical adult venipuncture? 
a. 23 g 
b. 16 g 
c. 21 g 
d....
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Advanced – Dysrhythmias Questions And Answers
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Excitability - Answer- the ability of non-pacemaker heart cells to respond to an electrical impulse that begins in pacemaker cells. 
 
Depolarization - Answer- occurs when the normally negatively charged cells within the heart muscle develop a positive charge. 
 
Conductivity - Answer- the ability to send an electrical stimulus from cell membrane to cell membrane. As a result, excitable cells depolarize in rapid succession from cell to cell until all cells have depolarized. Ex: the wave of depol...
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HEALTHSTREAM TELEMETRY & ECG EXAM 2023/2024
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HEALTHSTREAM TELEMETRY & ECG 
EXAM 2023/2024 
Mechanical & Electrical Activity - CORRECT ANSWER-- Correlation between the 
electrical and mechanical functions of the heart 
- Electrical activity stimulates the heart to contract 
- Electrocardiogram (ECG) show both functions 
- Electrical pulse= action potntial 
Cardiac Monitoring - CORRECT ANSWER-- Used to diagnose dysrhythmias, chamber 
enlargement, MI/myocardial ischemia, monitor effects of electrolyte imbalances of 
medication administrat...
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Cardiac Dysrhythmias Part 2 Questions With Complete Solutions
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Describe treatment of dysrhythmias correct answer: To determine if treatment is necessary, assess the patient. Then ask the following questions: 
Is he or she experiencing signs and symptoms of decreased cardiac output? 
Is the dysrhythmia potentially life threatening? 
If the answer to either of these questions is yes, the patient will need to treatment for the dysrhythmia. 
 
 
***WE WILL DISCUSS TREATMENTS OF DYSRHYTHMIAS BASED UPON CURRENT ACLS TREATMENT ALGORITHMS 
CLINICAL MANIFESTATIONS ...
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NR 507 Patho Final Exam Questions With Correct Answers Latest 2023-2024 (Score A+)
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What period follows depolarization of the myocardium and represents a period during 
which no new cardiac potential can be propagated? 
Correct! 
 
Refractory 
 
Threshold 
 
Sinoatrial (SA) 
 
Hyperpolarization 
During the refractory period, no new cardiac action potential can be initiated by a 
stimulus. This selection is the only option that accurately identifies the period described 
in the question. 
Question 2 
2 / 2 pts 
What is the suggested mean blood pressure for an 8- to 9-year-old ch...
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BKAT ICU Post Test Exam 2023 With 100% Correct Answers.
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BKAT ICU Post Test Exam 2023 With 100% Correct Answers. 
Nitroprusside purpose - correct answer decreases preload and afterload by vasodilation 
(mainly afterload) 
Dobutamine mechanism of action - correct answer contractility 
Dopamine at a low-end dose "renal dose" - correct answer 0.5-4mcg/kg/min 
increases renal and mesentric perfusion 
Dopamine at a mid-range dose - correct answer 4-10mcg/kg/min 
increases contractility and heart rate 
Dopamine at a high-range dose - correct answer greate...
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BKAT ICU Post Test exam 2023 with 100% correct answers
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Nitroprusside purpose 
decreases preload and afterload by vasodilation (mainly afterload) 
 
 
 
Dobutamine mechanism of action 
contractility 
 
 
 
Dopamine at a low-end dose "renal dose" 
0.5-4mcg/kg/min 
increases renal and mesentric perfusion 
 
 
 
Dopamine at a mid-range dose 
4-10mcg/kg/min 
increases contractility and heart rate 
 
 
 
Dopamine at a high-range dose 
greater than 10mcg/kg/min 
vasoconstriction and increases BP 
 
 
 
Dopamine and Levophed infiltration 
leads to tissue ...
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HESI Critical Care Exam Test Bank Latest Update 2023/2024 Questions with Answers and Rationales
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1.	A client with asthma receives a prescription for high blood pressure during a clinic visit. 
 
Which prescription should the nurse anticipate the client to receive that is least likely to exacerbate asthma? 
A.	Carteolol (Ocupress). 
 
B.	Propranolol hydrochloride (Inderal). 
 
C.	Pindolol (Visken). Incorrect 
 
D.	Metoprolol tartrate (Lopressor). Correct 
 
The best antihypertensive agent for clients with asthma is metoprolol (Lopressor) (C), a beta2 
 
blocking agent which is also cardiosel...