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Most manufacturers recommend pulling a vacuum pressure of _____ prior to recharging a system. 

When a service valve stem is turned so that it is halfway between front and back seats, it is considered _____. 

If a refrigerant cylinder weighs 100 lb and its tare weight is 20 lb, how much refrigerant was removed if the final weight is 50 lb after charging a system? 

The purpose of oil in a vacuum pump is to act as a lubricant for the pump and also as a(n) _____. 

The mother of a 10-month-old infant is concerned because her child was exposed to an unvaccinated cousin who contracted measles (rubeola) when traveling abroad. Which signs and symptoms should the provider expect to see that would indicate the baby had a measles infection?

A 5-year-old child presents to the clinic for evaluation and treatment of a dermatologic condition. Based on the attached picture, what should be prescribed for this child?

Which of the following best describes the treatment for prodromal phase of roseola?

What chest xray would exhibit a ground glass appearance? 

When a patient is performing pursed lip breathing, what does this maneuver do for the patient?I.Lengthens their expiratory timeII. Increases inspiratory timeIII. Holds their airway openIV. Increases their respiratory rate

What parameters should be measured to identify the progressiveness of a neuromuscular disorder?I. Vital capacity (VC)II. FEV1III. Total lung capacity (TLC)IV. Negative inspiratory force (NIF)