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# Roses calculations

Question | Answer |
---|---|

Fahrenheit to Celsius | C = 5/9(F-32) |

Celsius to Fahrenheit | F = (9/5 * C)+ 32 |

Celsius to Kelvin | K = C + 273 |

Kelvin to Celsius | C = K - 273 |

Fahrenheit to Kelvin | C = 5/9 (F-32) K = C + 273 |

Absolute Zero | 0 degrees Kelvin |

Kilograms to Pounds Kg to lbs | 1Kg = 2.2lbs so 4kg * 2.2lbs = 8.8lbs |

Pounds to Kilograms lbs to kg | 1lb = .454 so 10lbs * .454kg = 4.54kg or 10lbs/2.2 =4.54 |

1kg equals how many mg | 1000mg So 8kg *1000mg = 8000mg 500mg = .0005 |

1 liter equals how many ml | 1000 ml So 8L *1000ml = 8000ml 68ml =.068L |

1 ml equals how many L | .001 L |

1 mg equals how many kg? | .001 kg |

800ml equals how may L? | 1L/1000ml = 800ml/1000L = .8L |

675,500mg equals how many g? | 1g/1000mg = 675,500mg/1000g = 675.5g |

1cc is equal to how many ml? | 1ml |

1cuft is equal to how many liters? | 28.32L 5cuft * 28.32L =141.6 liters |

100L is equal to how many cu ft? | 100/28.32 =3.53 |

1 inch is equal to how many cm? | 2.54cm |

60inches equals how many cm? | 60in * 2.54cm=152.4 |

60cm equals how many inches? | 1in/2.54cm = 60cm/2.54 = 23.62inches or 60cm * .3937 = 23.62 |

10inches equals how many cm? | 10in * 2.54 = 25.4 |

1cm is equal to how many inches? | .3937inches |

100cm is equal to how many inches? | 100cm * .3937 =39.37 |

1atm is equal to ?in Hg, ?mmHg, ?cmH2o, ?psi | 1atm = 29.9 inHg, 760 mmHg, 1034 cmH2o, 14.7psi |

ATM means what? | Atmospheric Pressure |

Boyle's Law equation | V2 = P1 *V1/P2 P2 = P1 * V1/V2 |

Boyle's Law | Temperature is constant, Pressure and Volume are indirectly related. |

Charles Law | Pressure is constant and Temp and Volume are directly related. |

Charles Law equation | V2 = V1 * T2/T1 |

Gay-Lussac's Law | Volume is constant, and Temp. and Pressure are directly related. |

Gay-Lussac's Law equation | P2 = P1 * T2/T1 |

Combined Gas Law equations | V2 = V1 * P1 * T2/P2 * T1 P2 = V1 * P1 * T2/V2 * T1 T2 = P2 * V2 * T1/P1 * V1 Always change Temp. to Kelvin |

Combined Gas Law | Combines all three gas laws together. |

Total Flow Via the AEM (Air Entrainment) | Total flow = Liters of air/Liters of 02 = 100-(%)/ (%) - 21 or 20 (use 20 for anything over 35%) other wise use 21 |

Dalton's Law equation | Fi02 * PB = partial pressure .21 (02) * 760mmHg = 160 mmHg |

Total Flow equation 50% at flows of 15lpm, what is total flow? | 100-50/50-21 = 50/29 = 1.7 air/1L 02 15Lpm * 1.7 + 15 * 1 =40.5Lpm |

AEM Ratio 50Lpm and 40% Fi02 | 100-% /% - 20 or 21 Lpm / sum of parts = Lpm 02 Lpm - sum of (Lpm 02) = Lpm Air 100-40/40-20 (21) = 60/20 = 3/1 but add them = 4 Now 50/4 = 12.5Lpm 02 Now 50-12.5 = 37.5Lpm Air |

Rule of thumb for Nasal Cannula's and Nasal Catheters equation | Multiply each Liter used by 4 and then add 20 Ex: 2Lpm * 4 =8 +20 =28% |

Cylinder Duration equation | A good therapist subracts 500 for the reserve. psi - 500 * cylinder factor / Lpm = how long tank will last you if transporting etc... |

Duration of a cylinder Calculate the duration of E cylinder with 1700psi and a pt on a 31% venti-mask at 6Lpm | 1700-500 * .28 / 6Lpm = 336/6 = 56min. |

Cylinder Factors D, E, G, H & K | D = .16 E = .28 G = 2.41 H&K = 3.14 |

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