light is frequently at an improper level. In many laboratory cultures used for physiological research the light intensity is too low to permit logarithmic growth. In nature the intensity is well above saturation and may be high enough to inhibit growth during much of the day. The intensities for saturation and inhibition depend on the suitability of other factors of the environment‚ e.g.‚ temperature‚ CO2 level‚ and nutrient supply. In attempting to predict the performance of an alga under a given set
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exchange VIII. Gas Transport – Oxygen A. Oxygen has low solubility 20 ml of O21. 100 ml of blood (alveolar capillaries)— a. 0.3 ml of dissolved O2 (1.5%) b. 98.5 % – bound to Hemoglobin (iron in Heme group) 2. Hemoglobin saturation a. 4 O2 = 100% b. 2 O2 = 50% c. Hb binds O2 reversibly B. Oxygen-Hemoglobin dissociation curve 1. Relates saturation of Hb with pO2 increase Hb saturation ( ↑ affinity)2. increase pO2 —— a. Hb stores O2 decrease Hb saturation (↓affinity)3. decrease pO2
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gas exchange in this zone? no 5. The respiratory zone contains alveoli where gas is exchanged. This zone consists of the respiratory bronchioles‚ alveolar ducts‚ and alveolar sacs. 6. The pulmonary arteries carries blood that is (high or low) in oxygen to the lungs. Pulmonary capillaries exchange gases with the alveoli. Blood leaves the lungs in the pulmonary veins‚ which carry oxygenated blood back to the heart. 7. Name the three types of cells in the alveolus: 1. Type I cells; simple
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signs are as follows: heart rate‚ 75/min; blood pressure‚ 127/82 mm Hg; respiratory rate‚ 16/min; oxygen saturation‚ 100% on 2L of O² via nasal cannula; body temperature‚ 36.9°C. When Mr. F arrives to the PACU‚ the receiving nurse notices an increase in his heart rate to 91/min and an increase in respirations to 21/min. After administering a 3-mg IV bolus of morphine sulfate for pain and increasing oxygen delivery to 4L/min via nasal cannula‚ the nurse continues to see a gradual increase in heart rate
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Encourage deep breathing from diaphragm and coughing. | This will promote lung expansion. Increased airflow. (Maury 2011) | Moist air enters the airway. | Monitor O2 saturation throughout acute phase.Establish a chest x-ray. | Establishes baseline in order to monitor oxygen exchange regression or progression. | If the oxygen is fluctuating below the required amount it can be reported immediately and therefore actions can be taken. | Increase fluid intake. Up to 300ml per day. | Hydration
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dissolved oxygen content‚ pH‚ biological oxygen demand‚ and turbidity of these four sites in order to determine whether any correlations exist between these factors. Because of the variance between each of the aquatic ecosystems involved in this experiment‚ each supports different types of plants and animals which are affected by environmental changes such as temperature and‚ by extension‚ dissolved oxygen content. II. Procedure
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The nurse will assess the effort of breathing‚ by looking at respiratory rate‚ signs of recession‚ use of accessory muscles or nasal flaring‚ and will record oxygen saturations (Kelsey and McEwing‚ 2010). An increased work of breathing may lead to poor feeding. This‚ paired with fever‚ which increases fluid loss‚ can lead to poor hydration (Mikalsen et al.‚ 2014). For these observations the nurse will need to see
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and 4‚ I believe the algae accumulation in the lake is the cause of the dead fish. It could be because the algae are using up vital oxygen sources that the fish need to survive. Table A on page 3 shows the amount of dead fish increase as the number of algae cells increase. This shows that the algae and fish are competing for oxygen‚ and the fish are losing. Also‚ oxygen levels in the lake slowly decreased over a 3 day period‚ as shown by Table B on page 3. This possible algae-fish competition might
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Interpretation of the Arterial Blood Gas Self-Learning Packet 2004 This self-learning packet is approved for 2 contact hours for the following professionals: 1. Registered Nurse 2. Licensed Practical Nurse Orlando Regional Healthcare‚ Education & Development Copyright 2004 Arterial Blood Gas Interpretation Table of Contents Purpose ................................................................................................................... 3 Objectives ...........
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In patients at risk of hypercapnic respiratory failure (see below) aim for an oxygen saturation of 88–92%. The first part of the primary survey is always assessing the airway. This includes checking for potential injury to the cervical spine. Until cervical spine injury has been ruled out‚ open the patient’s airway using a jaw-thrust maneuver
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