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NURS 6501 Midterm Exam

HEAL100 Health Care — exam and revision material · Other

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Health Care exam material, 10 pages. Originally published on StudyMerit.

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10
Academic year
2025/2026
Language
English

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NURS 6501 Advanced Pathophysiology – Latest Midterm Exam with Verified Questions and Answers 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) Downloaded by Studymerit Dotcom (samuelkaruiki40@gmail.com) lOMoARcPSD|6879242

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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 The nurse is teaching staff about the most common cause of Down syndrome. What is the nurse describing? - Answer: Maternal nondisjunction A 50 - year - old male was recently diagnosed with Huntington disease. Transmission of this disease is associated with: - Answer: Delayed age of onset A patient wants to know the risk factors for Down syndrome. What is the nurse's best response? - Answer: Pregnancy in women over age 35 What is the role of cytokines in cell reproduction? - Answer: Provide growth factor for tissue growth and development A newborn male is diagnosed with albinism based on skin, eye, and hair appearance. Which finding will support this diagnosis? - Answer: Inability to convert tyrosine to DOPA (3,4 dihydroxyphenylalanine) Sodium and water accumulation in an injured cell are a direct result of: - Answer: Decreased ATP production A nurse is reading a chart and sees the term oncotic pressure. The nurse recalls that oncotic pressure (colloid osmotic pressure) is determined by: - Answer: Plasma proteins The ion transporter that moves Na + and Ca 2+ simultaneously in the same direction is an example of which of the following types of transport? - Answer: Symport 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 Downloaded by Studymerit Dotcom (samuelkaruiki40@gmail.com) lOMoARcPSD|6879242

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Why is potassium able to diffuse easily in and out of cells? - Answer: Because the resting plasma membrane is more permeable to potassium Hypothyroidism - A disorder caused by a thyroid gland that is slower and less productive than normal, does not produce enough T3 and T4 T3, T4, TSH - Diagnosing hypo/hyperthyroidism T3/T4 = thyroid. TSH = Pituitary. T3/T4 abnormality = problem with THYROID. T3/T4 normal + TSH abnormal = Secondary thyroid problem If too much T3/T4, then TSH will be down. Vice Versa. calcium - parathyroid glands responsible for regulating ___ levels. metabolism, temperature - Thyroid produces hormones T3, T4, and plays big role in __, ___ regulation and growth and development iodine - Brain cannot make T3 and T4 without ___ slows - hypothyroidism everything ___. stimulates sympathetic nervous system, drowsy, lethargic constipated, food move slows, weight gain body temp increases Hyperthyroidism - excessive activity of the thyroid gland: increased levels of T3, T4 and TSH loss - Hyperthyroidism: burning calories at an excessive rate weight ___ stimulates sympathetic nervous system: alert, quick reflexes, increased HR & BP (fight or flight response_ Heat intolerance: increased body temp Active GI: diarrhea anterior pituitary gland - the anterior part of the pituitary gland; an endocrine gland whose secretions are controlled by the hypothalamic hormones produces thyroid stimulating hormone (TSH) Cushing's disease - (Remember: *UP, UP, UP, DOWN, UP*) HYPERnatremia, HYPERtension, INCREASED blood volume, Downloaded by Studymerit Dotcom (samuelkaruiki40@gmail.com) lOMoARcPSD|6879242

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