Expert Minds

Name 3 different devices that modern dive computers replace (Ans- 1) dive tables 2) J-valves 3) depth gauges What sets SDI apart from other training agencies? (Ans- First dive training agency to provide entry level scuba instruction that incorporates the use of personal dive computers --> more streamlined scuba course w/ more instruction time in the water How much larger and closer do objects appear underwater and why? (Ans- Objects underwater appear 25% larger and 25% closer...

Which of the following is not true? Divers should equalize: 1: Preemptively before descent. 2: Well before feeling any pain or discomfort. 3: As soon as they feel any pain or discomfort. 4: Early and often during descent. (Ans- As soon as they feel any pain or discomfort. Objects under water appear: 1: The same size as they do on land. 2: Twice as large as they do on land. 3: Closer and larger than they do on land. 4: Smaller and farther away than they do on land. (Ans- Closer and...

True or False. Dive computers work by monitoring the presences of so-called 'silent bubbles using ultrasound. (Ans- False What may happen if you go too deep or stay too long? (Ans- You may not be able to make a direct ascent to the surface without substantially increasing your risk of decompression sickness and your dive computer may require you to make a series of decompression stops A decompression stop is: (Ans- Pausing at a fixed depth for a specified period of time to allow exc...

what are 3 'systems' of blood circulation that we discussed in class? (Ans- pulmonary system systemic system coronary system during ventricular systole, what is happening to the blood volume within the ventricle? (Ans- first, there is no change-once pressure is great enough and the semilunar valves one, volume drops what 3 veins empty into the right atrium (Ans- superior vena cava, inferior vena cava, coronary sinus an individual has an increase in afterload, what effect wo...

A 54-year-old male with a long history of smoking complains of excessive tiredness, shortness of breath, and overall ill feelings. Lab results reveal decreased pH, increased CO2, and normal bicarbonate ion. These findings help to confirm the diagnosis of: (Ans- respiratory acidosis For a patient with respiratory acidosis, chronic compensation by the body will include: (Ans- Kidney excretion of H+ A 55-year-old female presents to her primary care provider and reports dizziness, confusio...

When discussing causes of hypernatremia (elevated serum sodium), it is correct to include: Select all that apply. A) Excessive free water intake. B) Inappropriate administration of hypertonic saline solution. C) Over secretion of the hormone aldosterone. D) Cushing syndrome. E) Ingesting large amounts of dietary sodium. (Ans-B,C,&D High sodium can be caused by inappropriate administration of hypertonic saline (sodium bicarbonate in cardiac arrest), over secretion of aldosterone, and Cu...

Inflammation of the stomach's mucosal lining (may involve the entire stomach or a region) (Ans- Gastritis _________Can be a mild, transient irritation, or it cab be a severe ulceration with hemorrhage (Ans- Acute Gastritis _________ Usually develops suddenly and is likely to be accompanied by nausea and epigastric pain (Ans- Acute Gastritis _________ Gastritis develops gradually. (Ans- Chronic Gastritis Gastritis can be further categorized as erosive or nonerosive (Ans- Ch...

Gastritis (Ans - an inflammation of the stomachs mucosal lining. It can involve the entire stomach or a region. Manifestations: Include indigestion, heartburn, epigastric pain, abdominal cramping, nausea, vomiting, anorexia, fever, and malaise. Hematemesis and dark, tarry stools can indicate ulceration and bleeding. Causes: excessive alcohol use, chronic vomiting, stress, or certain medications such as aspirin or anti- inflammatory drugs. Can also be caused by H. pylori- bacteri...

What are the three function of the kidneys (Ans- excretion, elimination, regulation Explain what excretion is? (Ans- removal of organic waste products from body fluids Explain what elimination is? (Ans- discharge of the waste products from the body Explain what regulation is? (Ans- regulating blood volume, ion concentration, blood pH and nutrients What are signs and symptoms indicating one may have a renal disorder? (Ans- pain in the back flank area that is felt at the CV...

what is jaundice? (Ans - green yellow staining of tissues from increased level of bilirubin as the liver cannot metabolize extra bilirubin. Found on eyes, skin, and mouth. present with liver disease What is ascites? (Ans - pathological accumulation of fluid in the peritoneal cavity due to the loss of albumin in the liver, causing fluid to be free amongst the cells. It can cause a lot of pain in the abdomen, and it must be drained with a parenthesis What is hepatic encephalopathy? (An...