A blood culture yields yellow-pigmented, beta-hemolytic, catalase-positive, gram-positive cocci in clusters. The department is out of Staphylococcus latex agglutination reagent. The microbiologist sets up a tube coagulase and mannitol salt agar
She incubates both at 35°C in CO2 overnight. The next day the coagulase test is negative and the mannitol salt agar displays yellow colonies. How will you proceed with these results?
A) Report this organism as Staphylococcus not S. aureus
B) Repeat the tests due to invalid results
C) Test the organism for novobiocin resistance
D) Report this organism as Staphylococcus aureus
B
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A newborn with which of the following clinical manifestations should receive nasal CPAP?
a. Substernal retractions, PaCO2 = 65 mm Hg, PaO2 = 48 mm Hg, FIO2 = 0.4 b. Tachypnea, nasal flaring, PaCO2 = 50 mm Hg, PaO2 = 50 mm Hg, FIO2 = 0.6 c. Grunting, substernal retractions, pH = 7.20, PaCO2 = 70 mm Hg, PaO2 = 40 mm Hg, FIO2 = 0.7 d. Tachypnea, pale skin, pH = 7.32, PaCO2 = 45 mm Hg, PaO2 = 75 mm Hg, FIO2 = 0.21
Your partner reports that a patient's blood pressure is 156/78 mmHg. From this reading, you realize:
A) The pulse pressure is 224 mmHg B) The systolic blood pressure is 78 mmHg C) The constant pressure in the veins is 156 mmHg D) The diastolic blood pressure is 78 mmHg