Qrs Study guides, Class notes & Summaries

A patient has a transcutaneous pacemaker. Which action should the nurse implement when a pacemaker spike occurs but is not followed by ventricular complex? Assess the heart rate Increase the mA Increase the mV Assess the ECG lead placement - Answer Increase the mA A patient has a transvenous temporary pacemaker in place. Pacemaker spikes are noted on the ECG, but they are not followed by a P wave or QRS complex. Which is initially indicated? Reposition patient on the right side In...

BKAT Exam (verified Answers) Graded A+ 2023. What to do first if patient has chest pain. - correct answer Rest! ECG changes in an acute MI - correct answer ST elevation in 2 or more contiguous leads. Ischemia d/t full thickness loss of muscle. EMERGENCY. Inferior leads - correct answer II, III, aVF. RCA occlusion. Septal leads - correct answer V1 & V2. Anterior leads - correct answer V1 - V4. LAD lesion. Lateral leads - correct answer V5, V6, I, and aVL. Circumflex lesion. Cardiac enzyme...

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...

CARDIAC- HEALTHSTREAM TELEMETRY TEST EXAM 2023 along what axis is time measured in an EKG paper? - CORRECT ANSWER-across a horizontal axis what does each small square on an EKG strip represent? - CORRECT ANSWER-1 mm in length 0.04 seconds what does each large square on an EKG strip represent? - CORRECT ANSWER-5 mm in length 0.2 seconds how can a regular rhythm be calculated on an EKG strip? - CORRECT ANSWER-when the rhythm is regular, the heart rate is 250 divided by the number o...

What lab level should be checked for a possible MI? correct answer: Troponin What indicates metabolic acidosis? correct answer: Low bicarb and low pH What signs would be expected for sustained blood loss? correct answer: Hypotension and a weak, thready pulse What does the P wave indicate on a rhythm strip? correct answer: Atrial depolarization before the QRS What is a possible reason for lower extremity edema and what lab is used to diagnose? correct answer: R sided heart failur...

allows blood to flow directly from the right atrium into the left atrium to bypass pulmonary circulation - foramen ovale carries blood from the umbilical vein to inferior vena cava; allows some blood to bypass the liver - ductus venosus atrial contraction; systole; p wave - atrial depolarization max volume of air that can be exhaled following maximal inhalation - vital capacity allows blood in pulmonary artery to flow directly into the descending aorta to bypass the pulmonary circula...

STARN EKG TEST (NON LETHAL RHYTHMS) UPDATED VERSION 2024 BEST FOR REVISION. 2 / 7 1. Accelerated Junctional: Rate: 60-100 Rhythm: Regular Pwave: before/after/absent - inverted PR: unknown QRS: Normal *** Fast junctional escape 2. Asystole: absence of contractions of the heart-Flat Line 3. Atrial fibrillation: rapid, random, ineffective contractions 4. Atrial Flutter: Rate:Atrial 250-350 Ventricular: 100 -175 P:Irregular or absent, often "saw tooth" QRS: Normal Conduction: AV Blo...

Normal sinus rhythm - EKG Regular Rate: 60-100 P Wave: Present, upright PR Interval: 0.12-0.20 sec QRS: <0.12 sec Sinus Bradycardia - EKG Regular Rate: <60 P Wave: Present, upright PR Interval: 0.12-0.20 sec QRS: <0.12 sec Sinus Tachycardia - EKG Regular Rate: 100-150 P Wave: Present, upright PR Interval: 0.12-0.20 sec QRS: <0.12 sec Premature Atrial Contraction - EKG IRREGULAR Rate: depends on underlying rhythm P wave: Present or hidden in T wave PR Interva...

Midterm Exam: NR574/ NR 574 (2023/2024 New Update) Acute Care Practicum Review | Week 1-4 | Questions and Verified Answers| 100% Correct- Chamberlain QUESTION How often should a CK level be drawn and why? Answer: least every 6-12 hours to establish a peak level and then subsequently a downward trend. QUESTION Sylvie is a 26-year-old who presents to the emergency department (ED) after just finishing a full marathon. She complains of feeling lightheaded, nauseous, and ha...

A & P 2 Straighterline Final Exam Questions and Answers / Straighterline Anatomy and Physiology When erythrocytes are destroyed, which of the following events occurs? -ANS>> The globin portion of the molecule is broken down into amino acids. Type AB blood -ANS>> has both A and B antigens on the red cells In the platelet release reaction, -ANS>> ADP and thromboxanes stimulate other platelets to become activated. The hematocrit is -ANS>> d. the percentage of RBC...