Numerade

Questions asked

BEST MATCH

A 66-year-old woman presents to the clinic with shortness of breath, leg swelling, and fatigue. She has a long history of type 2 diabetes and hypertension but until recently she had been able to go for daily walks with her friends. In the past month, the walks have become more difficult owing to shortness of breath and fatigue. She also sometimes awakens in the middle of the night owing to shortness of breath and must prop herself up on three pillows. On physical examination, she is noted to be tachycardic with a heart rate of 110 bpm and a blood pressure of 105/70 mm Hg. Her lung exam is notable for fine crackles on inspiration at both bases. Her cardiac exam is notable for the presence of a third and fourth heart sound and jugular venous distension. She has 2+ pitting edema to the knees bilaterally. An ECG shows sinus rhythm at 110 bpm with Q waves in the anterior leads. An echocardiogram shows decreased wall motion of the anterior wall of the heart and an estimated ejection fraction of 25%. She is diagnosed with systolic heart failure, likely secondary to a silent myocardial infarction. Question 1 (2.5 points) What are the two mechanisms that can lead to heart failure in a patient with a recent myocardial infarction? Myocyte loss and decreased myocyte contractility. Valve dysfunction and myocyte hypertrophy. Increased vascular resistance and impaired conduction.

View Answer

BEST MATCH

Which resource would most likely be considered a secondary source of information about the economic policies of the current British prime minister?

View Answer

BEST MATCH

The next few questions will give us some practice with the subtraction of polynomials. Simplify -(-7x^2+7x-4)

View Answer

BEST MATCH

Bongbong Marcos was a 21-year-old male college student who complained of pain, nausea with vomiting, and tenderness in the right lower quadrant. Bongbong Marcos noticed that the pain was first vague and diffuse, then became more severe in the midepigastric region before localizing in the right lower quadrant of his abdomen. She was assessed by Nurse Sarah Duterte and he told her that the pain was accentuated by movement, deep respiration, coughing, or sneezing. Bongbong Marcos developed fever and a moderate leucocytosis or increase in WBC count (11,500/cu mm) on complete blood count. A marked tenderness was noted over the right lower quadrant at McBurney's point (one-third the distance between the anterior superior iliac spine and the umbilicus). The psoas sign (pain on passive hyperxtension of the thigh) was also present. His vitals were:Temperature 37.9\deg CPulse. 100 bpmBP 140/90 mmHgRespiration 19 cpm and shallowBongbong's abdomen was protuberant with decreased bowel sounds. The abdominal x-ray indicated distended bowel loops.QUESTION: What is the cause of the fever, pain, and leukocytosis in this person? Answer only.

View Answer

BEST MATCH

Serena williams wants to give herself a ring with a sapphire (Al2O3 in its purest form) that contains 0.0517 mol Al. How much volume (in cm^3) of Al2O3 would she need? the density is 3.95 g/cm^3

View Answer

BEST MATCH

Question 24 2.5 pts The majority of excavates possess two or more flagella, defined as a primitive gut. a layer of proteins and fibers arranged in a spiral directly underneath the membrane. whip-like cellular extensions that are used both for locomotion and for moving food into a feeding groove. multicellular organisms like plants and animals the cells integrate many of their functions.

View Answer

BEST MATCH

Along the shoreline of a pond, Canadian geese, American toads, and grass frogs search for food while bluegill and bass prey on small fish in the shallow water. These species, living and feeding in this particular location, represent one Question 29 options: species. population. community. ecosystem.

View Answer

BEST MATCH

the formula of an exponential equation that passes through the points (-3, 9/2) and (0, 1/6). (Use integers or reduced fractions as necessary) In the form y = a·b x then a = and b =

View Answer

BEST MATCH

Suppose and are linear transformations from to such that for all in . Is it true that for all in ? Why or why not?

View Answer

BEST MATCH

(1 point) Write the level surface 3 = 5x + 4y^2 + \sqrt{z} as the graph of a function f(x, y). \newline f(x, y) =

View Answer

adam p.