High svo2 - Study guides, Class notes & Summaries

A patient develops atrial fibrillation after abdominal surgery. Her blood pressure falls from 110/70 mm Hg to 92/68 mm Hg. The hypotension is related to which of the following? a. Decrease in ventricular contractility b. Hypovolemia c. Mural thrombi d. Decrease in ventricular filling - Correct answer: d Rationale: The contribution that atrial contraction makes to ventricular filling volume is approximately 15% to 30%. Atrial fibrillation results in quivering but not contracting atria. The...

ACNP Shock States Latest Update Graded A+ Central Venous Pressure A measure of the pressure exerted by fluid in the right atrium; indicative of right sided heart function Normal: 0-6 CVP Elevation Ex. Fluid overload, cardiogenic shock Conditions that cause an increase in the amount of fluid in the R atrium CVP Decreased Ex. Dehydration, Distributive shock Conditions that cause a decrease in the amount of fluid in the R atrium Pulmonary Artery Pressure a measure of the systolic and diastolic p...

CCRN Barrons Respiratory Concepts Exam Questions and Answers 100% pass Rely on mild hypoxemia for ventilator drive. if the PaO2 Is corrected to normal, this may result in a decreased drive to breathe - Answer- Chronic PaCO2 retainers What is the clinical indicator of ventilation - Answer- PaCO2 What is minute ventilation - Answer- tidal volume x respiratory rate +normal ventilation is about 4L/min an increase in minute ventilation = - Answer- an increase in work of breathing Primary musc...

Order when reading ABGs? - Oxygenation status (PaO2, level of FiO2 received, O2 delivery device), acid-base balance (pH), ventilation status (PaCO2-also influences acid-base balance), bicarbonate level What are the clinical indications for drawing an ABG? - Patient has a change in LOC, increasing respiratory difficulty, or low blood pressure (or change in BP on arrival). Why do we need to draw an ABG for a patient with low blood pressure? - Because if the body is acidotic and the pH is ver...

Patient stability -mild signs of deterioration: mild confusion, tachypnea -6-8 hours before cardiac or respiratory arrest PCU vs ICU -ICU nursing is delivering ICU care to patients wherever they may be -PCU is progressive care units (intermediate or step down) that provide transition between ICU and general care unit >at risk for serious complications Complexity of unstable clients #1: physiologically unstable -critical analysis and decision making #2: risk of complications -frequent assess...

©BRAINBARTER 2024/2025 Vascular access certification Exam Questions With 100% Verified Answers Device Selection based on - answer-Patient's choice ex: L or R , Seat belt/brastrap -Ability of care giver -Patient's age - no VAD lower extremities of crawler/toddler, no IVAD d/t fear of needle -Obesity - place on cephalic - moisture/dislodgement -Pt's hx : circulatory problems like congenital heart disease, reynauds, fx, paralysis, amputation and AVF, CKD III, pacemaker, AICD, IVF filter...

Alveolar Oxygen Tension (PAO2)/Alveolar Air Equation correct answer: Shortcut: (Fio2 x 7) -Paco2 +10 VD/VT and ratio correct answer: Paco2-Peco2/Paco2 Make it a ratio by multiply answer by 100. 20-40% (up to 60% for vent pts) Alveolar Minute Ventilation correct answer: (VT-VD) x f Anatomic deadspace correct answer: 1ml per 1lb body weight Work of breathing correct answer: change in Pressure X change in Volume .5-.7 J/L (.05-.07 kg-m/l) Alveolar-Arterial Oxygen Gradient (P(A-a...

FCCN II: cardiac concepts Questions with solutions 2023 preload: what how wet/dry you are amount of fluid filling heart affected by dilating/constricting VEINS R heart -CVP L heart -PCWP (wedge pressure) preload: affected by VEINS constrict --> INCREASE dilate --> DECREASE Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:05 / 0:15 Full screen preload: frank-starling principle giving fluid improves CO up...

PCCN 2024 Exam Questions With 100% Correct Answers S1 - ANSWER- Mitral and tricuspid "lub" of "lub dub" S2 - ANSWER- Aortic and pulmonic "dub" of "lub dub" S3 - ANSWER- Ventricular Gallup. Beginning of diastole after S2. Too much volume S4 - ANSWER- Rare. Atrial Gallup. Resistance to filling. End of diastole 1/avl/V5/v6 - ANSWER- Lateral (Circumflex): AVL- High Lateral V6 Low Lateral Less common/ less severe II/III/avf - ANSWER- Inferior V1/v2/ v3/ v4 - ANSWER- Ante...

obstructive shock Shock that occurs when there is a block to blood flow in the heart or great vessels, causing an insufficient blood supply to the body's tissues. distributive shock maldistribution of blood volume, including: -anaphylactic shock (activation of immune response d/t allergic reaction) -neurogenic shock (loss of sympathetic tone r/t traumatic spinal cord injury) -septic shock (altered immune response r/t infectious process) Previous Play Next Rewind 10 seconds...