Module 01- Cell Phys, Math, Chem, Physics Flashcards
During aerobic metabolism how many moles of glucose used? How many moles of ATP formed?
2 glucose
38 ATP
Where is glycogen stored? How long will supply last during starvation?
Stored in skeletal muscles(400g) and liver (100g)
Supply will provide 24 hours of glucose during starvation
What is the degredation and oxidation of fatty acids called? Where does it occur?
Beta-oxidation
Occurs in mitochondria of cells (primarily in the liver)
What are the fat soluble vitamins
A
D
E
K
What are the water soluble vitamins
B complex (thiamine)
Vitamin C (ascorbic acid)
5 components fo signal transduction
1st messenger G protein Effector 2nd messenger Cellular response
5 examples of second messengers
cAMP cGMP Calcium Calmodulin IP3 DAG
Enzyme that converts ATP to cAMP
Adenylate Cyclase
Na+-K+ ATPase pump
___out
___in
3 Na+ out
2 K+ in
Examples of ion channel receptors
5HT3 receptors
GABA receptors
Glutamate receptors
What ion channel governs RMP of most excitable tissues?
“Leaky” potassium channel
% concentration means
Grams/100ml
V1P1=V2P2
Pressure is inversely proportional to volume at a constant temperature
Boyles Law
V1/T1 = V2/T2
Volume is directly proportional to temperature at a constant pressure
Charles Law
P1/T1 = P2/T2
Pressure is directly proportional to temperature at a constant volume
Gay- Lussac’s Law
Allows you to calculate how long cylinder will last a given flow rate
Squeezing ambu bag
Explains release into atmosphere of large amount of gas from compressed cylinder
Boyles law
Inflatable cuff of LMA or ETT
Spirometry
Heat loss by convection
Charles law
Temperature of cylinder increases the pressure increases
Wood’s metal blows with temperature increases significantly
Gay-Lussac’s
Law permitting calculation of O2 dissolved in blood and CO2 dissolved in blood
Henry’s law
amount of O2 dissolved in blood is PaO2 X
Amount of CO2 is PaCO2 X
PaO2 X 0.003
PaCO2 X 0.067
Law explaining concentration effect, second gas effect, diffusional hypoxia, and expansion of gas in spaces
Fick’s law of diffusion
Law explaining the larger the gas molecule the slower it diffuses across a membrane
Also part of second gas effect and diffusion hypoxia
Grahams law
Oxygen content formula
CaO2 = (Hgb X 1.34 X SaO2) + (PaO2 X 0.003)
FEV1/FVC ratio
Normal value
Decreased in what disorder
Normal 0.7-0.8
Decreased in obstructive diseases
Normal FRC
2.2-3 L
Calculating osmolality
Normal value
(2X Na) + Glucose + Urea
Normal 300 mOsm/L
Number showing how much gas will dissolve in a liquid at specified temperature
Ostwald
Described behavior of non-ideal gases
Van der Waal
What effect does hypothermia have on gas solubility
As liquid is cooled, more dissolves in liquid. Hypothermia causes increase in gas solubility
Minimum safe distance from XRay source
6 feet
Annual dose limit for occupational exposure to radiation
5 rem
Vapor pressure sevoflurane
170mmHg
Vapor pressure isoflurane
240 mmHg
Vapor pressure of Desflurane
669 mmHg
How many micro amps are required to cause micro shock induced V-fib
50 microamps
How many milliamps required to cause macro shock induced Vfib
100-2500 milliamps
What is grounded in the OR
Power supply
Patient
Floor
What laser can cause corneal injury and potential vision loss
CO2 laser
Anaphylactic or immediate type hypersensitivity reactions are
Type I reactions
Cytotoxic reactions (antibody mediated cytotoxicity) are what type of reaction
Type II reactions
Immune complex reactions that produce tissue damage are what type
Type III
Delayed hypersensitivity reactions are
Type IV reactions
Type I reactions include
Allergen interacts with specific IgE antibody triggering HISTAMINE release
Ex anaphylaxis
Type II reaction
Hypersensitivity
Mediated by IgM and IgG
ABO incompatibility, HIT, myasthenia Travis
Type III reaction include
Circulating antigen and antibodies bind to form insoluble complexes that deposit in micro vasculature
Lupus
RA
Glomerulonephritis
Type IV reaction involves
Delayed hypersensitivity
Graft vs host, TB immunity, Steven Johnson
Non-immune mediated anaphylaxis aka
Anaphylactoid reaction
Antigen directly stimulates mast cells and basophils (no IgE trigger)
Top 3 antibiotics to be involved in anaphylactic reactions during anesthesia
PCN
Cephalosporin
Vancomycin