Oxygen dissociation curve - Study guides, Revision notes & Summaries

oxygen binds irreversibly to this molecule - answer-neither myoglobin or hemoglobin binding pattern for this molecule is considered cooperative - answer-hemoglobin oxygen dissociation curve is hyperbolic in shape - answer-myoglobin oxygen dissociation curve is sigmoidal in shape - answer-hemoglobin this molecule has a greater affinity for oxygen - answer-myoglobin As oxygen binds to this molecule the shape of the molecule changes, enhancing further oxygen binding - answer-hemoglob...

Peds CCRN Review Questions (from AACN) – With 100% Verified Solutions Peds CCRN Review Questions (from AACN) – With 100% Verified Solutions PEEP is intended to do which of the following? A. Improve ventilation/perfusion matching B. Decrease functional residual capacity C. Increased venous return to the heart D. Increased cardiac output - ANSWER - A. Improve ventilation/perfusion matching - PEEP increases alveolar volume, thereby improving ventilation/perfusion matching and incre...

In 55% of patients, which coronary artery gives rise to blood supply for the S-A Node? A. right. B. circumflex. C. posterior descending. D. obtuse marginal. - Answer A Which of the following is a reported disadvantage of cerebral saturation monitoring using Near Infrared Spectroscopy (NIRS) Technology: A. Global ischemic events are not reflected in the measurements. B. Pulsatile perfusion pressure is required for accurate measurements. C. Catheter placement is required for continuous m...

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...

What is the max acceptable venous line pressure? A. 40 mmHg B. -40 mmHg C. 120 mmHg D. -120 mmHg - Answer B. -40 mmHg An advantage of continuous warm blood cardioplegia is: A. increased oxygen delivery. B. significantly decreased myocardial oxygen tension. C. a shift of the oxygen dissociation curve to the left. D. lower myocardial oxygen consumption. - Answer A. increased oxygen delivery. Intra-aortic balloon augmentation is contraindicated in patients with: A. prosthet...

TEST BANK FOR MODERN BLOOD BANKING & TRANSFUSION PRACTICES 7TH EDITION DENISE M. HARMENING 9780803668881 Chapter 1-20 Complete. Chapter 1 RBCs and Platelet Preservation: Historical Perspectives and Current Trends Multiple Choice Identify the choice that best completes the statement or answers the question. ____ 1. Which metabolic pathway is responsible for generating 90% of the ATP for the RBC? a. Pentose phosphate shunt c. Glycolysis b. Luebering-Rapoport shunt d. Methemoglobin reductase ...

TNCC Exam 8th edition study Guide WITH ALL ANSWERS 100% CORRECT| VERIFIED| 2024 UPDATE 1.What is the effect of hypothermia on the oxyhemoglobin dissociation curve - ANSWER Hemoglobin does not readily release oxygen for use by the tissues A shift to the left occurs in an environment of low metabolic demand (hypothermia, hypocapnia, alkalosis), increasing hemoglobin's affinity for oxygen. EMS arrives with the intoxicated driver of a car involved in a motor vehicle crash. EMS reports signi...

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which of the following conditions in the blood would result in the greatest increase in ventilation rate? correct answers high CO2 Damage to the sinoatrial node in humans correct answers would disrupt the rate and timing of cardiac muscle contractions Which of the following is a function to prevent back-flow of blood? correct answers AV valves, Semilunar valves, venous valves Which of the following is an adaptation that increases the ability of animals living at high elevations to extra...

A 35-year-old male presents with facial trauma after being struck in the face with a baseball. A teardropshaped left pupil is noted on exam. What type of injury is suspected? - Globe rupture A teardropshaped pupil suggests a globe rupture. .A patient with a complete spinal cord injury in neurogenic shock will demonstrate hypotension and which other clinical signs? - Bradycardia and absent motor function below the level of injury Patients with a complete spinal cord injury will have absent mot...