Ccrn e Study guides, Class notes & Summaries

A patient has had a large anterior myocardial infarction last month and developed a ventricular aneurysm. He now has episodes of ventricular tachycardia that are not prevented or converted with antidysrhythmic agents. An implantable cardioverter-defibrillator (ICD) is implanted. Four days after surgery he develops ventricular tachycardia. The ICD has delivered three shocks but has not converted the rhythm. He is pulseless and apneic. Cardiopulmonary resuscitation is in progress. What is the prio...

Pediatric CCRN Exam Questions with correct Answers (Graded A)

3 causes for Fetal shunt closure - 1. increase in aterial oxygen tension 2. decreased prostaglandins 3. decreased adenosine levels When does the Ductus Arteriosus close? - within 10-24 hours of birth When does the Foramen Ovale Close? - When LA pressure exceeds RA pressure (can stay open for 6mo to a year) What does Cardiac Output measure? - Efficiency of the heart Cardiac Output is the measure of what? - Volume of blood pumped by the heart in one minute How is cardiac output calculated...

"high dose" dopamine causes vasoconstriction and (C) Increase afterload - What is the primary hemodynamic effect of: Dopamine >10 mcg/kg/min (A) Increase preload (B) Decrease preload (C) Increase afterload (D) Decreased afterload (E) Increase contractility (D) Decrease contractility Pulmonary HTN and cor pulmonale; Mitral, aortic, or tricuspid insufficiency - What causes the S3 sound? during diastole - When are coronary arteries perfused? S3 heart sound - What may you hear before c...

What is vasogenic cerebral edema? - Answer- Vasogenic cerebral edema is an increase in extracellular fluid caused by a breakdown of the blood-brain barrier with the resultant increase in vascular permeability. This cerebral edema begins locally and becomes more generalized. Common causes are trauma (including surgical trauma), tumors, hemorrhage, and abscesses What is vasogenic cerebral edema? - Answer- Vasogenic cerebral edema is an increase in extracellular fluid caused by a breakdown of th...

A 56 yr-old male is admitted to the ICU with a blood pressure of 225/135 and complains of a headache and nausea. He reports he ran out of blood pressure meds three days ago, but also appears to be confused to the date and situation. What is the most appropriate treatment approach? - correct answerRapidly lower the diastolic pressure to 100 with IV antihypertensive meds, then continue to gradually reduce the diastolic pressure to 85 with oral antihypertensive meds. The maximum initial decreas...

4 auscultatory points - correct answer 1. aortic 2. pulmonic 3. tricuspid 4. mitral Why is S4 not heard in the presence of atrial fibrillation? - correct answer No atrial contraction What causes pericardial friction rub? What is it associated with? - correct answer - Pericarditis - associated with pain on deep inspiration - may be positional Calculation for pulse pressure - correct answer systolic pressure - diastolic pressure Normal pulse pressure - correct answer 40-...

A 59 year old male is admitted complaining of chest pain and dyspnea. ST elevation and T wave inversion were seen on the EKG in V2,V3 and V4. IV thrombolytic therapy was started in ED. Indications of successful reperfusion would include all of the following except: (A) pain cessation (B) decrease in CK or troponin (C) reversal of ST segment elevation with return to baseline (D) short runs of ventricular tachycardia correct answers (B)Coronary artery reperfusion due to PCI or fibrinolysis r...

CCRN PEDS AACN Exam (2023/ 2024) Questions and Verified Answers QUESTION The initial therapy for children at risk for pulmonary embolus related to venous thromboembolism from a central venous line (CVL) is A. placement of an inferior vena cava filter. B. administration of anticoagulants. C. immediate removal of the CVL. D. thrombectomy by a surgeon. Answer: administration of anticoagulants QUESTION In an infant with bronchopulmonary dysplasia (BPD), factors that impair ...