To Rember For tomorrow Flashcards
What are the assumed densities in a two compartment model?
Fat has a density of 0.900 g/ml
FFM has a density of 1.100 g/ml
What is the benefit of using a high frequency probe during an ultrasound?
High-frequency probes provide high resolution but have poor penetration. They are used for superficial structures like the thyroid, breast, scrotum, and lumps.
What can a low frequency probe inform about during an ultrasound?
Low-frequency probes have worse resolution but provide good penetration. They are used for adult abdomen and pelvic exams.
Boxes on an ECG tracing
- One large box = 0.20 seconds
- one small box = 0.04 seconds
1 large box is made up of 5 small boxes
2 ways to calculate HR from an ECG tracing?
- HR= (60s/min) ÷ RR intervals in seconds
- HR= 1500 ÷ # of small boxes between RR intervals
How to calculate stroke work?
SW= stroke volume * map
How to calculate cardiac work?
Cardiac work = stroke work * HR
P wave represents?
atrial depolarization
QRS complex represents?
ventricular depolarization
ST segemnts represents?
ventricular repolarization
How do you interpret ICC values?
ICC values are interpreted as follows: less than 0.40 is poor, 0.40 to 0.59 is fair, 0.60 to 0.74 is good, and 0.75 to 1.00 is excellent
Cut-off for Dyslipidemia
LDL: >130mg/dL
HDL: <40mg/dL
Total serum cholesterol: >200mg/dL
Pre diabetes risk factors
Fasting blood glucose: >100mg/dL
Impaired glucose tolerance: >140 mg/dL
What is the difference between validity and reliability?
Validity is about accuracy or correctness
Reliability is about repeatability and consistency
Formula for calculating the coefficient of variation?
CV = (Standard Deviation/ mean) * 100
How is an odds ratio calculated?
OR = (a/b)/(c/d) = (ad) / (bc)
How is a risk ratio calculated?
RR = [a/(a+b)] ÷ [c/(c+d)]
