Advanced Pathophysiology Midterm 6501 Walden University questions with correct answers

Advanced Pathophysiology Midterm 6501 Walden University questions with correct answers A runner has depleted all the oxygen available for muscle energy. Which of the following will facilitate his continued muscle performance? - Correct Answers Answer: Anaerobic glycolysis What causes the rapid change in the resting membrane potential that initiates an action potential? - Correct Answers 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? - Correct Answers Answer: XXY A nurse is reviewing the pedigree chart. When checking for a proband, what is the nurse looking for? - Correct Answers 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? - Correct Answers Answer: Expressivity In teaching a patient with cirrhosis, which information should the nurse include regarding cholesterol? - Correct Answers 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 - Correct Answers Answer: Autosomal recessive How are potassium and sodium transported across plasma membranes? - Correct Answers Answer: By adenosine triphosphate enzyme (ATPase) The nurse would be correct in identifying the predominant extracellular cation as: - Correct Answers Answer: Sodium The early dilation (swelling) of the cell's endoplasmic reticulum results in: - Correct Answers Answer: Reduced protein synthesis What principle should the nurse remember when trying to distinguish aging from diseases? - Correct Answers 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. - Correct Answers Answer: Turner syndrome A eukaryotic cell is undergoing DNA replication. In which region of the cell would most of the genetic information be contained? - Correct Answers Answer: Nucleolus The nurse is teaching staff about the most common cause of Down syndrome. What is the nurse describing? - Correct Answers Answer: Maternal nondisjunction A 50-year-old male was recently diagnosed with Huntington disease. Transmission of this disease is associated with: - Correct Answers Answer: Delayed age of onset A patient wants to know the risk factors for Down syndrome. What is the nurse's best response? - Correct Answers Answer: Pregnancy in women over age 35 What is the role of cytokines in cell reproduction? - Correct Answers Answer: Provide growth factor for tissue growth and development A new