This is how these work activity levels are defined. Sedentary work means that you are able to sit for up to 6 hours in an 8 hour day and lift up to 10 lbs. occasionally during a day; Light work means that you can stand and walk for up to 6 hours in an 8 hour day and lift 10 lbs. frequently and 20 lbs. occasionally; Medium work means that you can stand and walk for up to 6 hours in an 8 hour day and lift 25 lbs. frequently and 50 lbs. occasionally.
Cavum velum interpositum (CVI) is commonly an incidental asymptomatic finding on imaging studies. Encystment can occur and, in most situations, is also asymptomatic.
X, V, and XV factor discs should be applied, leaving a reasonable amount of space between the discs to prevent diffusion of the factors. Plates are incubated in CO2, and examined after 16-18 hours. Colonies which only surround the XV disc can be identified as Haemophilus influenzae, while those surrounding the XV and the V discs are Haemophilus parainfluenzae. A common test for confirmatory identification of Haemophilus influenzae is the porphyrin test.