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Aleisha S., Age 7 reports to clinic with complaint of feelin…

Aleisha S., Age 7 reports to clinic with complaint of feeling “sick”. Mom reports she had diarrheal illness about 6 days ago, but seemed to recover. Over the past 2 days she has become very tired and listless and has not felt like going to school. She told her mother this morning that she “can’t pee”. On exam you note she appears mildly dehydrated, has a few purpura on her legs, mild hepatosplenomegaly, slight facial edema and fever of 100.8 F(o).You elect to do a CBC with differential, comprehensive metabolic panel, and UA/UC. You are alerted by lab that hgb is 7.4, platelets are 60,000 and there is blood and protein in urine.  You are most concerned that child has:

At 25°C, the Henry’s Law constant for oxygen gas (O₂) in wat…

At 25°C, the Henry’s Law constant for oxygen gas (O₂) in water is 1.3 × 10⁻³ mol·L⁻¹·atm⁻¹. (a) Calculate the concentration of dissolved oxygen in water (in mol·L⁻¹) at a partial pressure of 0.21 atm (the approximate partial pressure of oxygen in air at sea level). (b) If the partial pressure of oxygen is increased to 1.00 atm (as in a hyperbaric oxygen chamber), what will the new concentration of dissolved oxygen be?

You are examining a 5-year-old child who has had recurrent f…

You are examining a 5-year-old child who has had recurrent fevers, bone pain, and a recent loss of weight. The physical exam reveals scattered petechiae, lymphadenopathy, and bruising. A complete blood count shows thrombocytopenia, anemia, and an elevated white cell blood count. Based on findings, you are concerned for: