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1. 2. 3. 4. 5. 6. Answers 1. Agnonal Rhythm  Agnonal Rhythm.  An agnonal rhythm is a very slow idioventricular rhythm with a rate less than 20.  Like other ventricular rhythms it is characterized by a wide, bizzare looking QRS complex.  This rhythm is often seen prior to asystole. 2. 2nd Degree Heart Block Type II  2nd Degree Heart Block Type II.   Both the atrial rhythm (P-P interval) and the ventricular rhythm (R-R interval) are regular.  The atrial rate is 100 and the ventricular rate is 33.   There is more than one P wave for each QRS complex. Some P waves are immediately followed by a QRS complex and others are not. The PR interval on the conducted beats is the same.   Therefore, this rhythm meets the criteria for a 2nd Degree AV block type II rhythm.  3. Sinus Bradycardia  Sinus Bradycardia.   The rhy...

1. 2. 3. 4. 5. 6. Answers 1. Bradycardia with 1st Degree Heart Block Bradycardia with 1st Degree Heart Block.  The rate is 42. The rhythm is regular. There is one upright P wave before each QRS complex. If you measure the PR interval you will find that it is > .20 seconds. What is the actual measurement? A prolonged PR interval is characteristic of a 1st degree AV block.  2. Atrial Fibrillation with Ventricular Escape Rhythm  Atrial Fibrillation with Ventricular Escape Rhythm.  The ventricular rate is 30.   The ventricular rhythm is regular.  There are only fibrillatory waves before each QRS complex.  There is no measureable PR interval.  Because there is a complete AV block present a ventricular escape mechanism has taken over the pacemaker function of the heart.  Recall that the inhereant rate of the ventricle is between 20-40.  3. Third Degree Hea...

21.      A 45 year old woman has been admitted to PCU for nausea and vomiting x 4 days.   Her initial STAT serum chemistries show her BUN to be 55 and her creatinine to be 2.5.    Her heart rate is 148 and her BP is 84/40. She complains of weakness and dizziness.   A saline lock was inserted in her left antecubital and she has been placed on telemetry.   As you begin to assess her she suddenly loses consciousness.   What would be the next appropriate step for this patient? Administer a precordial thump Shock the patient at 200J Call respiratory therapy Assess her responsiveness and breathing 22.   The following rhythm is noted on the monitor: Name the above rhythm. Ventricular tachycardia Supraventricular tachycardia Wide complex tachycardia Accelerated Idioventricular rhythm 23.   After determining that the patient is unrepsonsive and apneic, the next app...

11. All of the following are true regarding drug delivery via the endotracheal route EXCEPT: Results in lower blood concentrations than the same dose given intravascular route. Give 2 to 2½ times the recommended IV dose. Enables drug delivery similar to that achieved by peripheral venous access at comparable doses. Providers should dilute the recommended dose in 5 to 10 ml of water or normal saline and inject the drug directly into the endotracheal tube 12. All of the following are beneficial effects of epinephrine EXCEPT a.     Increases myocardial contraction b.     Increases peripheral vascular vasoconstriction c.     Increases myocardial oxygen consumption d.     Increases heart rate 13. If PETCO2 is _______, it is reasonable to consider trying to improve CPR quality by optimizing chest compression parameters <60 mm Hg >10 mm Hg >40 mm Hg ...