1.       A 41-year-old Asian female presents with headache,…

1.       A 41-year-old Asian female presents with headache, and photophobia of 5 hour duration.  She has never had anything like this before.  In the emergency room, she appears lethargic and confused.  T98.6 F, RR 18, P98, BP 104/62.  She has photophobia.  Fundoscopic exam reveals papilledema.  The rest of the physical exam is unremarkable.  A Lumbar puncture is performed immediately.  Results from the fluid: WBC 12/ml (80% neutrophils) 30000 RBCs/ml, total protein 90, glucose 80.  Gram stain shows no organisms.  Tube 4 shows the same results as tube 1.  Opening pressure is 30 cm H2O. Patient was diagnosed with HIV 20 years ago; CD4 count was 58 3 months ago.  Patient is not on HAART.  This is most consistent with:

1.       A 21-year-old white female presents with headache,…

1.       A 21-year-old white female presents with headache, fever and photophobia of 12 hours duration.  She has never had anything like this before.  In the emergency room,  she appears lethargic and confused.  T101.9F, RR 18, P98, BP 104/62.  She has nuchal rigidity as well as photophobia.  Fundoscopic exam reveals no papilledema.  The rest of the physical exam is unremarkable.  A Lumbar puncture is performed immediately.  Results from the fluid: WBC 313/ml (92% neutrophils) 25 RBCs, total protein 68, glucose 40.  Gram stain shows no organisms.  Tube 4 shows the same results as tube 1.  Opening pressure is 30 cm H2O.   This is most consistent with:

A 65-year-old gentleman with long-standing pulmonary emphyse…

A 65-year-old gentleman with long-standing pulmonary emphysema from cigarette smoking is admitted for a COPD exacerbation.  Your resident informs you that he is a “chronic CO2 retainer.”  He recently underwent pulmonary function testing as an outpatient which revealed an FEV1 of 40% predicted for his age and weight.  A resting, baseline room air arterial blood gas was also obtained and revealed a pH = 7.38, pCO2 = 50, pO2 = 70 (reference values given below).  A PA/lateral CXR has been ordered and the results of a just performed ABG are pending. Reference ranges: pH 7.35-7.45 pCO2 36-44 pO2 >85   Which of the following set of laboratories would MOST likely be found in this patient?   Na K Chloride HCO3 BUN creatinine A. 140 4.2 100 20 15 1.0 B. 140 4.2 110 20 15 1.0 C. 140 4.2 95 25 15 1.0 D. 140 4.2 105 25 15 1.0 E. 140 4.2 80 30 15 1.0 F. 140 4.2 102 30 15 1.0

A student has completed 20 courses in the School of Arts and…

A student has completed 20 courses in the School of Arts and Science. Her grades in the 20 courses are shown below:   B, B, C, C, A, A, A, B, B, B, A, B, B, C, B, C, B, A, D, A   Create a frequency and a percent frequency table for this data set. (Do NOT type any percent signs in your answers. For instance, 50% should be entered as 50)   Letter Frequency Percent Frequency A [a] [b] B [c] [d] C [e] [f] D [g] [h]