A 60 year old diabetic patient presents to the clinic with what he describes as “floaters”  and flashes of light.  Which differential belongs at the top of the list of differentials and needs an immediate referral?

Which of the following is the appropriate test to order to confirm chronic sinusitis or sinusitis that is resistant to treatment?

* ref: finance.yahoo.com Based on the above plot of the stock index price data (e.g., the closing price of the S&P 500 index), which statement is not true?

  Based on the above statement for Google’s holding company Alphabet,  Net profit margin is _____________ , which measures how much profit a company makes as a percentage of its revenue.

  The standard deviation of returns for each asset (i.e., the volatility of the rate of returns) measures the risk associated with each asset. Based on the plot above, higher returns correspond to risk. The asset with the highest risk in the plot above is _________________

  Debit is the percentage of assets that are financed by debt. This ratio is an indication of “financial risk.” Generally, the higher the ratio, the more risky the firm is, as firms have to pay interest on debt regardless of the earnings or cash flow situation. Based on the above statement for Google’s holding company Alphabet,  the debt ratio is ___________________   * Note: Alphabet Inc. is the holding company of Google, created through a corporate restructuring in 2015. It serves as the parent organization for Google and its subsidiaries, including YouTube, Waymo, DeepMind, and more. This structure allows Alphabet to manage various businesses separately while keeping Google focused on its core internet services.

Choose the sentence that best expresses the implied main idea of the paragraph below. In ancient Rome, a left-handed boy who was training to be a soldier would have his hand bound to his side, and would be forced to use his weapon with his right hand. In the early Catholic Church, left-handedness was often interpreted as a sign of Satanic influence, and thus prohibited. In Christian-Greek Scriptures, many descriptions of the Last Judgment place the wicked or evil at the left hand of God, while the righteous sit at the right hand of God. During the early part of the twentieth century, Roman Catholic nuns in United States elementary schools sometimes punished children for using their left hand to write, typically by slapping their left hand with a ruler if they attempted to pick up a pen with it. As a result of such treatment during their formative years, baseball players Lou Gehrig and Babe Ruth continued to write right-handed, even though they hit and threw left-handed. Also, until very recently, in Chinese societies, left-handed people were strongly encouraged to switch to being right-handed. However, this may be in part because, while Latin characters are equally easy to write with either hand, it is more difficult to write legible Chinese characters with the left hand.

Choose the sentence that best expresses the implied main idea of the paragraph below. Working at home is convenient and flexible and can be less stressful than daily commuting. It can benefit employers (who need less space), employees (who save on clothing and transportation), and entrepreneurs (who save on office expenses). However, it is not for everyone: it requires enough initiative, independence, and self-confidence to work without supervision. Some home workers feel isolated or have trouble concentrating in the presence of such distractions as television, the refrigerator, and young children. Also, employees who work at home may lose fringe benefits, such as health insurance, and the protection of laws guaranteeing fair labor standards and working conditions.

Choose the sentence that best expresses the implied main idea of the paragraph below. When Attila the Hun and his barbarian hordes swept across northern Italy in about 430 CE., they wrought havoc and destruction on the remnants of the Roman Empire. But they unintentionally left another, more positive legacy as well. Refugees fled burning cities, desperate to find safe refuge. Some literally took to the swamps, finding sanctuary in a desolate group of islands in a marshy lagoon off the northern Adriatic. When the Huns were followed by other invading tribes, more Roman citizens streamed to the swamps to avoid the carnage and destruction on the mainland. Over the next few centuries, they transformed the inhospitable surroundings into an architectural wonder: Venice. With more than four hundred bridges and almost two hundred canals, the city on the lagoon became a center of trade and a seafaring power. By the 1200s, Venice was the most prosperous city in all of Europe. Today it remains one of the most beautiful (and most visited) cities in the world.

Choose the sentence that best expresses the implied main idea of the paragraph below. In 1818, British author Mary Shelley wrote what was probably the world’s first science- fiction novel, Frankenstein. In the novel, scientist Victor Frankenstein sets out to create a man by piecing together the remains of corpses gathered in charnel houses. While his efforts prove successful, Victor is revolted by the ugliness of the man he has created and abandons it. Enraged by his creator’s abandonment, the creature becomes a killer and wreaks havoc upon all those Victor holds dear. Victor goes in pursuit of his creation, and both eventually die in the barren wastes near the North Pole. In 1886, Robert Louis Stevenson published The Strange Case of Dr. Jekyll and Mr. Hyde. In this story, a mild- mannered London physician, bored with his life, creates a potion that when swallowed frees his evil twin, Edward Hyde. A living embodiment of Jekyll’s repressed desires, Hyde runs wild, kills a member of Parliament, becomes a fugitive, and eventually destroys both himself and his creator. More recently, American author Michael Crichton’s Jurassic Park tells what happens when modern scientists clone dinosaurs using the DNA found in the remains of prehistoric mosquitoes. Predictably enough, the dinosaurs run out of control, killing the organizers of the theme park which was to “safely” display them, while two paleontologists are among those who narrowly escape with their lives.