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Tutor profile: Edward H.

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Edward H.
Tutor for 4 years
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Questions

Subject: Medicine

TutorMe
Question:

You are an EMT arriving on scene to the house of a 59-year-old man complaining of abdominal pain. He says that he smokes and has had a history of heart problems. His blood pressure is high. He is currently on nitroglycerin and aspirin medication for his chest pain. When you lift his shirt, you notice a slight bulging in is abdomen. What is the likely condition and the appropriate course of action?

Inactive
Edward H.
Answer:

The symptoms and history suggest that this patient likely has an abdominal aortic aneurysm. He is a smoker, which weakens blood vessel walls. The high blood pressure is also a stable of aortic diseases. The appropriate course of action as an EMT is to stabilize the body and transport rapidly to the hospital. If the aneurysm bursts, he could go into hypovolemic shock, and potential die.

Subject: Chemistry

TutorMe
Question:

You have a sealed tank containing oxygen gas. The gas particles inside the tank are in constant motion, causing pressure when colliding with the walls of the container. You decide to add more oxygen gas into the same-sized tank, thus increasing the pressure. According to the Kinetic Molecular Theory, how will the average kinetic energy of the gas particles change as you add more particles to the tank?

Inactive
Edward H.
Answer:

The average kinetic energy will not change. The Kinetic Molecular Theory states that kinetic energy is only proportional to temperature(K). So only changing the temperature would change the kinetic energy of the gas particles.

Subject: Biology

TutorMe
Question:

Cystic Fibrosis is a genetic condition caused by a faulty protein CFTR. The malfunctioning CFTR protein causes Cl- to accumulate in lung wall cells, resulting in osmotic imbalance, and ultimately, a dehydrated mucus layer. People with the condition retain more water in their bodies but often find that there is interference with their breathing and digestion. What is one possible explanation for the cause of the faulty protein CFTR?

Inactive
Edward H.
Answer:

Because the biological code for proteins are stored in DNA, the most likely reason for a misfolded protein would be some sort of mutation in the genetic code(DNA) of the cell. In the case of cystic fibrosis, 70% of cases are due to an in-frame deletion of a Phe codon. This causes the protein to be synthesized incorrectly.

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