Mrs. Pratt has end stage emphysema and her ABG results are: …

Mrs. Pratt has end stage emphysema and her ABG results are:                                            pH 7.38       PaCO2 62       PaO2 57        HCO3 35         SaO2 84%                                                                  Which of the following would be the most appropriate action?

A patient is suspected of having amebic dysentery.  Upon mic…

A patient is suspected of having amebic dysentery.  Upon microscopic examination of a fresh fecal specimen, a trophozoite of 25 um displayed progressive, unidirectional movement.  It also displayed evenly distributed peripheral chromatin and finely granular cytoplasm.  The most likely identification is: