Normal qrs Study guides, Class notes & Summaries
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HFHS Critical Care Exam (A+ Graded Solutions)
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Normal Length for PR, QRS, and QT intervals. correct answers PR 0.12-0.20 sec, QRS 0.08-0.12 sec, and QT interval less than or = to 450 ms or half the R-R interval 
 
Big box on ECG readings = ___ seconds? correct answers 0.20 seconds 
 
Little boxes on ECG readings = ____ seconds? correct answers 0.04 seconds 
 
The mA that achieves capture is the _______ _________ correct answers pacing threshold 
 
Defibrillation energy settings (biphasic and monophasic) correct answers biphasic 120-200 j and...
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UCLA EKG Test Questions And Answers All Verified
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UCLA EKG Test Questions And Answers, All Verified 
 
AV node rate 
40-60 bpm 
 
 
SA node rate 
60-100 bpm 
 
 
Purkinje fibers rate 
20-40 bpm 
 
 
PR interval is from _ to _? 
beginning of P wave to beginning of Q wave 
 
 
QRS interval is from _ to _? 
beginning of Q to end of S 
 
 
QT interval is from _ to _? 
beginning of Q to end of T 
 
 
PR interval normal duration 
0.12-0.20 s 
 
 
QRS normal duration 
0.04-0.12 s 
 
 
QT interval normal duration 
0.36-0.44 
 
 
Normal Sinus Rhythm (N...
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EKG Clep Test (50) Questions and Answers 2023-2024 Verified. A+ Graded.
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EKG Clep Test (50) Questions and Answers 2023-2024 Verified. A+ Graded.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): 
Your Answer 
True 
Your Answer 
True ...
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ER EOR, PAEA EMERGENCY MEDICINE EXAM 2024 WITH 100% CORRECT ANSWERS
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a wide, bizarre QRS usually occurring earlier than expected with T wave in opposite direction? tx?Answer - PVC (premature ventricular contraction); no tx (may just be dehydrated) 
 
-subacute/s. viridans endocarditis treatmentAnswer - PCN OR ampicillin + gentamycin 
 
infection of the endothelium/valves 2ndry to colonization (during transient/persistent bacteremia)Answer - Endocarditis 
 
MC valve involved in infective endocarditis in non IVDAAnswer - mitral valve 
M>A>T>P 
 
MC val...
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Relias Dysrhythmia Basic Test Answers Solution guide 2022 ( UPDATED 2023) A+ GRADED 100% VERIFIED
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Relias Dysrhythmia Basic Test Answers Solution guide 2022 ( UPDATED 2023) A+ GRADED 100% VERIFIED 
normal sinus rhythm (NSR) Criteria: (PR, QRS, QT, Rhythm: reg or irreg) 
1 P-wave for Every QRS, REGULAR rhythm 
PR: 0.12-0.20 
QRS: 0.06-0.10 BBB = > 0.12 
QT: 0.36-0.44 
BPM: 60-100 
 
Sinus Bradycardia Criteria: (PR, QRS, QT, Rhythm: reg/irreg) 
PR: 0.12-0.20 
QRS: 0.06-0.10 
QT: 0.36-0.44 
BPM: < 60 (Reg. rate) 
Tx: Atropine 0.5mg, Pace, Dopamine 2-10 mcg/kg/min, Epie 2-10 mcg/min 
 
Sinu...
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APEX EKG Test Perfect Your Scoring.
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ventricular filling 
QRS Complex 
Normal is <0.12 seconds usually between 0.06 to 0.10 seconds 
Ventricular depolarization 
QT Interval 
Normal 0.36-0.46 
6 Steps for Rhythm Interpretation 
Determine Regularity 
Calculate the Rate 
Evaluate the P wave 
Measure the PRI 
Evaluate the QRS Width 
Evaluate the T wave and Calculate the QTI 
Normal Sinus Rhythm 
Regularity: atrial and ventricular rate are regular 
Rate: 60 to 100 beats per minute 
P wave: upright, smooth, round and uniform shape, on...
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CARDIAC HEALTHSTREAM TELEMETRY EXAM Q & A 2023/2024
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CARDIAC HEALTHSTREAM TELEMETRY 
EXAM Q & A 2023/2024 
Normal Conduction System - CORRECT 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...
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Relias Dysrhythmia Basic Test Answers Solution guide 2022 ( updated 2023) A+ GRADED 100% VERIFIED)
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Relias Dysrhythmia Basic Test Answers Solution guide 2022 ( updated 2023) A+ GRADED 100% VERIFIED) 
 
Sinus Rhythm 
60-100bpm 
Present P-wave 
PRI 0.12-0.20 seconds 
QRS 0.12> seconds 
 
Sinus Brad 
ycardia 
40-60bpm 
Present P-wave 
PRI 0.12-0.20 seconds 
QRS 0.12> seconds 
 
Sinus Tachycardia 
100-160bpm 
Present P-wave 
PRI 0.12-0.20 seconds 
QRS 0.12> seconds 
 
Sinus arrhythmia 
Irregular 
Normal or slow 
Present P-Wave 
PRI 0.12-0.20 seconds 
QRS 0.12> seconds
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Air Methods Critical Care exam with complete solutions
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What is the most reliable method of confirming and montioring correct placement of an ET tube? - Answer- Continuous waveform capnography 
 
The upper airway consists of... - Answer- Nose, Mouth, Jaw, Oral Cavity, Pharynx, and Larynx 
 
No gas exchange occurs here __________, it's called ____________. - Answer- Nose to terminal bronchioles, anatomical dead space. (2ml/kg of inspired tidal volume) They conduct airflow towards gas exchange units. 
 
Crycothyroid membrane - Answer- between thyroid ...
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ATI CARDIAC Questions and Verified Answers| 100% Correct| Grade A (2023/ 2024)
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ATI CARDIAC Questions and Verified Answers| 100% Correct| Grade A (2023/ 2024) 
 
Q: A nurse is caring for a client who has heart failure and whose telemetry reading displays a flattening of the T wave. Which of the following laboratory results about the nurse anticipate as the cause of this ECG change? 
A. Potassium 2.8 mEq/L 
B. Digoxin level 0.7 ng/mL 
C. Hemoglobin 9.8 g/dL 
D. Calcium 8.0 mg 
 
 
Answer: 
A 
 
 
 
Q: A nurse is providing teaching to a client who has anemia and a new prescri...
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