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A 72-year-old male patient presents to today with intermittent episodes of dizziness occurring while standing and walking.  He reports attempting to move slowly and walk cautiously.  He denies chest pain, shortness of breath, or activity intolerance.  He has no known cardiac or neurological health concerns.  He occasional experiences nausea but no other associated symptoms. Based on this clinical presentation, you diagnosed  benign positional paroxysmal vertigo (BPPV).   What outpatient diagnostic test maneuver can help to confirm a diagnosis of BPPV in this patient?

Your next patient is a 78-year-old who experienced a head injury earlier today.  According to the spouse, the patient lost consciousness for approximately 7 minutes after falling down the stairs. A head CT shows no evidence of intracranial lesions. The patient’s Glasgow Coma score (GCS) is 14 and they appear drowsy.  What is the most appropriate next step in managment?

Which medications listed below are associated with the highest incidence of QT prolongation among their classes?

What is the formula for sodium sulfate?

What is the mass of 3.26 x 1023 molecules of aluminum oxide (Al2O3)?

A student determined the mass of a sample in a flask by first weighing the empty flask (98.724 g), and then measuring the mass of the flask containing the sample (104.21 g). How many significant figures should be reported for the mass of the sample?

You are promised a lump sum payment of  $`FV` exactly `n` years from now. The annual nominal interest rate is `i`%, compounded semi-annually (twice per year). What is the amount you would need to invest today to have this same future value? **Remember, because the compounding is semi-annual, both the interest rate per period and the total number of periods must be adjusted accordingly. Enter your answer with 2 decimal places and NO special characters. Do not submit a negative value; submit your answer as a positive value.

Ethanol has a density of 0.789 g/cm3. What is the mass of 500 mL of ethanol?

2.3357 x 10-7   –   6.92 x 10-7   +   3.0223 x 10-8 =

You will see an assignment in the modules titled “Scratch work from Exam 1.” Upload a pdf of your scratch work from this exam. You have an extra day beyond the due date of this exam to get it done.  For things like this, I use a free pdf app on my phone or tablet. The one I use is called “Fast Scanner,” but there are also other apps. Alternatively, you could scan you scratch work with a scanner/copier. DO NOT SUBMIT PICTURES. Pdf uploads only please.