Causes of increased svo2 - Study guides, Class notes & Summaries

A patient is admitted to the ED following a vehicle accident. On physical exam, the RT discovers that breath sounds are absent in the left chest with a hyper resonant percussion note. The trachea is shifted to the right. The patient's heart rate is 45/min, RR is 30/min and BP is 60/40 mmHg. What action should the therapist reccomend first? correct answer: Needle aspirate the 2nd left intercostal space A 65kg spinal cord injured patient has developed atelectasis. His inspiratory capacity is ...

A patient is in cardiac and respiratory arrest. The selection of medications to reestablish cardiac function would stimulate the sympathetic nervous system beta1 receptors. This stimulation would result in increased automaticity and which of the following? a. Increased myocardial contractility b. Decreased left ventricular stroke work c. Decreased myocardial oxygen consumption d. Increased left ventricular afterload Correct answer: a Rationale: The sympathetic nervous system contains alph...

EVERY test bank/study guide question for Adult Health Exam 3 1. What is an ability that is a primary difference in the skills of a certified critical care nurse compared with nurses certified in medical-surgical nursing? a. Diagnose and treat life-threatening diseases b. Detect and manage early complications of health problems c. Provide intensive psychologic support to the patient and family d. Use advanced technology to assess and maintain physiologic function 1. d. One of the primary c...

Heparin: - Heparin inhibits the conversion of prothrombin into thrombin Heparin inactivates circulating thrombin Heparin inhibits the conversion of fibrinogen into fibrin Causes of Right side heart failure? - Acute RV infarct Pulmonary Embolism Septal defects Pulmonary stenosis/regurgitation COPD Pulmonary htn Left Ventricular fx The patient is receiving heparin infusion for the treatment of pulmonary embolism. There has been a 60% decrease in the platelet count and no clinical change...

1 PCCN PULMONARY EXAM | QUESTIONS & ANSWERS (VERIFIED) | LATEST UPDATE | GRADED A+ Post cardiac arrest phase, titration of inspired oxygen to lowest level to achieve O2 sat? Correct Answer: 94% frail chest = multiple rib fractures Correct Answer: = see saw chest movement Pertussis (whooping cough) Correct Answer: -An airborne bacterial infection that affects mostly children younger than 6 years. Patients will be feverish and exhibit a "whoop" sound on inspiration after a coughin...

preload - degree of stretch (volume of blood) of the ventricular muscle fibers at the end of diastole (when filling volume is the greatest). the higher this is the stronger the contraction preload - increased by blood transfusions, IV fluids, hypervolemia, regurgitation preload - decreased by hemorrhage, diuresis, dehydration, vasodilation afterload - resistance to ejection of blood from the ventricles afterload - increased by htn and vasoconstriction afterload - decreased by nitroglyceri...

PCCN Review Cardiac Exam 238 Questions with Verified Answers Calculate the cardiac output for a pt with a HR of 70 and a SV of 65 ml. - CORRECT ANSWER HR X SV=CO 70 X 65= 4550 4.6 L/min Calculate the cardiac output for a pt with a HR of 70 and a SV of 65 ml. HR X SV=CO - CORRECT ANSWER HR X SV=CO 70 X 65= 4550 4.6 L/min What % of the cardiac cycle is provided by the atrial kick? • 15% • 20% • 30% • 35% - CORRECT ANSWER 20% Atrial kick is a term that represents the am...

CCRN Barrons Multisystem concepts Exam Questions and Answers 100% Pass cellular disease due to inadequate perfusion (oxygen demand is greater than oxygen delivered) or the inability of the cells to utilize the delivered oxygen (oxygen utilization/consumption) - Answer- shock 3 stages of shock - Answer- compensatory progressive refractory BP is maintained during compensatory stage of shock d/t what two mechanisms? - Answer- stimulation of the sympathetic nervous system activation of the...

A patient is admitted to the ED following a vehicle accident. On physical exam, the RT discovers that breath sounds are absent in the left chest with a hyper resonant percussion note. The trachea is shifted to the right. The patient's heart rate is 45/min, RR is 30/min and BP is 60/40 mmHg. What action should the therapist reccomend first? - ANSWER- Needle aspirate the 2nd left intercostal space A 65kg spinal cord injured patient has developed atelectasis. His inspiratory capacity is 30% ...

CCRN Test Bank Which 12-lead ECG changes should be expected in a patient with ACS involving the inferior wall? a) ST segment elevation in leads II, III and all the precordial leads b) ST segment elevation and deeply inverted T waves in leads II, III and AvF c) ST segment elevation and deeply inverted T waves in leads V4-V6, I and aVL d) ST segment depression and T wave elevation in leads II, III and AvL - ANS Correct Answer: ST segment elevation and deeply inverted T waves in...