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RTH 102
Intergregated sciences for Respiratory care study guide
| Question | Answer |
|---|---|
| What is the basic metric unit for Length, Mass, Time, and Temperature? | Length is Meter (M), Mass is Kilogram (KG), Time is Seconds, and Temperature is Kelvin (K). |
| in mathematical formulas, what is the correct order to work problems containing braces, brackets, and parenthesis? | Parenthesis is first, then brackets, and braces is last. |
| What does Newton's first law of motion state? | It is also known as the law of inertia, which states that there is a natural tendency of objects to keep on doing what they are doing. |
| What does Newton's second law of motion state? | It is about Acceleration. it means that heavier objects require more force to move the same distance as lighter objects. |
| What does Newton's third law of motion state? | It is about equal reactions. This means that for every force, there is a reaction force that is equal in size, but opposite in direction. |
| What is Hooke's law and does it apply to momentum, gravity, or elasticity? | It applies to Elasticity; it is the extension of an elastic structure that is in direct proportion with the load added to it as long as it does not exceed the elastic limit. |
| Poiseuille's law describes the relationship between what 4 variables? | Length, radius, pressure gradient, and viscosity. |
| What is the difference between Laminar Flow and Turbulent Flow? | Laminar is smooth, low resistance, but Turbulent is a flow that swirls and whirls, causing increased resistance. |
| What is Bernoulli's principle and what happens to flow and pressure with this principle? | When flow through a tube is constant, then you reduce the diameter of the tube. The flow increases and the pressure decreases. |
| What is the Coanda Effect? | Given a high enough flow through a tube the lateral pressure wall will drop and form a "separation bubble" which permits the flow to attach to one wall of the tube. (Ex: water sticks to the side of the pitcher) |
| What is Avogadro's law? | States that equal volumes of gases contain equal numbers of molecules at the same temperature and pressure regardless of their mass. |
| With gas laws, what is the definition of pressure? | Defined as the amount of force exerted on one unit of area. |
| 760 mmHg = _____ ATM's (atmospheres)? | 1 atm |
| What is Boyle's law and what is the mathematical formula? | if temperature remains fixed, volume varies inversely with pressure. Formula is P1 X P2 X V2. |
| What is Charles's law and what is the mathematical formula? | If pressure remains fixed, volume varies directly with changes in absolute temperature. (Hot air balloon) Formula: V1/T1 = V2/T2 |
| What is Gay-Lussac's law and what is the mathematical formula? | States that if the volume remains fixed, the pressure exerted by a gas varies directly with the temperature. (air in your tires, pressure cooler) Formula: P1/T1 = P2/T2 |
| What is Dalton's law of partial pressure? | The pressure that each gas in a mixture would exert if it were the only gas in the container. |
| What is Henry's law? | when a gas is exposed to a liquid, the partial pressure of the gas in the liquid phase equilibrates with the partial pressure of the gas in the gaseous phase. (Ex; Soda pop) |
| What is Graham's law? | The diffusion of a gas through a liquid is directly proportional to its solubility coefficient and inversely proportional to the square root of its density (ex: Ink in water) |
| What is Laplace's law and what is the mathematical formula? | Smaller the sphere, the higher the surface tension and the smaller the sphere wants to get. Formula is 2ST/R |
| In Laplace's law, what force is being described? | Wall tension |
| What is the hydrolysis reaction and what is the mathematical reaction? | Breaking of chemical bonds by adding water. Formula is AB + H2O > AH + BOH |
| What is the mathematical formula for pH? | pH = -log [H+] |
| What is the formula for the Henderson-Hasselbalch equation? | pH = pKc +Log [HCO3] [diss CO2] |
| what are the normal ranges for Blood Gas analytes? | pH: 7.35-7.45 paCO2: 35-45 paO2: 80-100 saO2: 93%-99% HCO3: 22-26 BE:-2 to 2 |
| What are the correct steps to blood gas interpretations? | first, determine the acid/base status. second, determine the respiratory/metabolic component. Last, assess compenstation |
| What are some causes for Respiratory Acidosis? | from an increase in CO2 retention, excess carbonic acid in the extracellular fluid, also known as Hypoventilation. |
| What are some causes for Respiratory Alkalosis? | Increased rate in CO2 loss, deficit of carbonic acid in the extracellular fluid, also known as Hyperventilation. |
| What are some causes for Metabolic Acidosis? | results when there is a deficit/loss of HCO3 through the kidney or accumulation of metabolic acids. |
| What are some causes for Metabolic Alkalosis? | Results from accumulation of excessive HCO3. |