Vascular shunting - Study guides, Revision notes & Summaries

Which of the following statements describe truncus arteriosus? A. The pulmonary artery arises from the left ventricle, and the aorta stems from the right ventricle. B. A large VSD allows total mixing of blood from the two ventricles. C. If SVR decreases relative to PVR, blood flow will be shunted from right to left, bypassing the lungs. D. All of the above - D. All of the above What factor is responsible for closure of the foramen ovale? A. Increased PaO2 B. Increased pressure on th...

CCRN Review Questions and Answers 100% Pass Heart rate (HR) - Answer- 60-100 beats/min Mean arterial pressure (MAP) - Answer- 70-105 mmHg Cardiac output (CO) - Answer- 4-5 L/min Cardiac index (CI) - Answer- 2.5-4.5 L/min/m2 Stroke volume (SV) - Answer- 50-100 ml/beat Stroke index (SI) - Answer- 35-60 ml/m2/beat Right arterial pressure (RAP) - Answer- 4-8 mmHg Pulmonary artery pressure (PAP) - Answer- Systolic 15-30 mmHg Diastolic 5-15 mmHg Pulmonary artery occlusive pressure (PAOP) - A...

Adaptation to Extrauterine Life - >>-neonate must immediately establish respiratory gas checkmate in conjunction with marked circulatory changes -during delivery the fetal chest is compressed, increasing intrathoracic pressure and squeezing a small amount of fluid out of the lungs -after birth the newborns trunk,the chest wall recoils creating a negative intrathoracic pressure thought to produce passive inspiration that replaced the fluid in the large airways Grunting in babies -...

Comprehensive CRNA Interview Review Accurate responses are given. Comprehensive CRNA Interview Review Norepinephrine Mechanism of Action (MOA) A1, A2, B1 agonist. Primary agent used in distributive shock because it's ability to recruit venous volume and augment preload, while increasing arterial tone, and increasing cardiac output. Alpha one causing peripheral smooth muscle contraction. (low dose venous, high dose venous and arterial). Alpha 2 adrenoreceptor agonism actually ant...

What is stenosis? hardening or narrowing of a valve, it makes it difficult for blood to flow past it, but bloods still flows normally through the heart What is regurgitation? blood moves backwards through the valve. The blood moves both ways, in and out What happens with Aortic Stentosis? If there's sever aortic stenosis you will not get as much blood flow through the body. The body will start shunting from less vital organs to more vital. The SNS will kick in causing an increased HR, vasocon...

PAEA Emergency Medicine EOR Exam Study Guide. what is the most common cause of heart failure? specifically left sided? right sided? - - MC is CAD (coronary artery disease) -L sided: *CAD* & HTN -R sided: *L sided HF* & pulmonary dz decreased ejection fraction, thin ventricular walls, dilated LV chamber, and an S3 gallop (filling of dilated ventricle) is associated with systolic or diastolic heart failure? - systolic (MC form of CHF) *(the sound is actually heard in the diastole though) ...

Newborn (Uncomplicated) Exam Practice Questions and Answers | 100% Correct | Verified and Updated What are the prenatal and intrapartum factors that determine transition from uterus to extrauterine life?-Correct️️ -Prenatal care, nutrition, blood group, Rh sensitization, health compromising behaviours, medications, hx of infections (sexually transmitted, GBS status), hx of bleeding/diabetes/hypertensive disorders. Gestation length (preterm, term, post term). First stage of labour (feta...

pharmacokinetics - Answer what the body does to the drug Pharmacodynamics - Answer what the drug does to the body upregulation - Answer increase density of receptors chronic decrease in receptor stimulation ex. chronic use of beta-blockers increases the number of B-receptors downregulation - Answer decrease density of receptors caused by a chronic increase in receptor activation ex. chronic treatment of asthma with albuterol (beta 2 agonist) reduces the number of B-receptors wh...

What are the RESPIRATORY identifiable symptoms of hypoxia/hypoxemia? - ANSWER- -Increased RR (tachypnea) -Dyspnea (perceived SOB) -Paleness (cyanosis=severe) What are the CARDIOVASCULAR identifiable symptoms of hypoxia/hypoxia? - ANSWER- -Mild hypertension (secondary to vasoconstriction) *if severe, leads to eventual hypotension. What are the NEUROLOGIC identifiable symptoms of hypoxia/hypoxemia? - ANSWER- -Restlessness -Disorientation -Headaches -Severe case lead to (distressed appea...

What are some important factors (risks) to consider when evaluating a fetal heart rate strip? - --*PNLs* (abnormal?) --weight gain/loss --Maternal age --*Gestational age* --*MATERNAL vital signs* --*Membrane status* --*Cervical exam* What are the easiest ways for assessment of maternal oxygenation status? - *Pulse Ox* (& other vital signs, RR) *Blood gas* (if indicated, asthma exacerbation) *Lung soungs* (pneumonia, pulmonary edema?) What effect can *HTN/Preeclampsia* have on the Pla...