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A quiz on advanced pathophysiology, covering topics such as anaerobic glycolysis, resting membrane potential, genetic disorders like klinefelter syndrome, prader-willi syndrome, cystic fibrosis, and turner syndrome, as well as cellular processes like dna replication and the role of cytokines. The quiz includes questions and answers related to various diseases and genetic conditions, providing a comprehensive review of key concepts in pathophysiology. It also addresses topics such as oncotic pressure, ion transport, and the effects of aging on cells. This quiz is designed to test and reinforce understanding of complex pathophysiological mechanisms and their clinical implications, making it a valuable resource for students and healthcare professionals.
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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.
A 15-year-old female is diagnosed with Prader-Willi syndrome. This condition is an example of: ✔✔Answer: Gene imprinting 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
A patient has severe mental retardation caused by a deletion of part of chromosome 5. What genetic disorder will the nurse see documented in the chart? ✔✔Answer: Cri du chat syndrome A 20-year-old pregnant female gives birth to a stillborn child. Autopsy reveals that the fetus has 92 chromosomes. What term may be on the autopsy report to describe this condition? ✔✔Answer: Tetraploidy Why is potassium able to diffuse easily in and out of cells? ✔✔Answer: Because the resting plasma membrane is more permeable to potassium