Advanced Pathophysiology Midterm 6501 Walden University (Weeks 1-6) Already Graded To Pass!!

Advanced Pathophysiology Midterm 6501 Walden University (Weeks 1-6) Already Graded To Pass!! A runner has depleted all the oxygen available for muscle energy. Which of the following will facilitate his continued muscle performance? Answer: Anaerobic glycolysis What causes the rapid change in the resting membrane potential that initiates an action potential? Answer: Sodium gates open, and sodium rushes into the cell, changing the membrane potential from negative to positive. A 12-year-old male is diagnosed with Klinefelter syndrome. His karyotype would reveal which of the following? Answer: XXY A nurse is reviewing the pedigree chart. When checking for a proband, what is the nurse looking for? Answer: The person who is first diagnosed with a genetic disease An aide asks the nurse why people who have neurofibromatosis will show varying degrees of the disease. Which genetic principle should the nurse explain to the aide? Answer: Expressivity In teaching a patient with cirrhosis, which information should the nurse include regarding cholesterol? Answer: Cholesterol decreases the membrane fluidity of the erythrocyte, which reduces its ability to carry oxygen. When a patient asks what causes cystic fibrosis, how should the nurse respond? Cystic fibrosis is caused by an _____ gene Answer: Autosomal recessive How are potassium and sodium transported across plasma membranes? Answer: By adenosine triphosphate enzyme (ATPase) The nurse would be correct in identifying the predominant extracellular cation as: Answer: Sodium The early dilation (swelling) of the cell's endoplasmic reticulum results in: Answer: Reduced protein synthesis What principle should the nurse remember when trying to distinguish aging from diseases? Answer: It is difficult to tell the difference because both processes are believed to result from cell injury. What is the diagnosis of a 13-year-old female who has a karyotype that reveals an absent homologous X chromosome with only a single X chromosome present? Her features include a short stature, widely spaced nipples, reduced carrying angle at the elbow, and sparse body hair. Answer: Turner syndrome A eukaryotic cell is undergoing DNA replication. In which region of the cell would most of the genetic information be contained? Answer: Nucleolus