xNURS 6501 Lecturio Quiz Questions and Answers Week 1-6

• Macrophages • Red blood cells • Mast cells • Epithelial cells • Hepatocytes A child is brought to the emergency department with rapid-onset urticarial rash and pruritus after eating peanuts. He has no respiratory distress, wheezing, stridor, or facial edema. Which of the following is the most appropriate treatment at this time? • Steroids • Proton pump inhibitors • Epinephrine • Non-steroidal anti-inflammatory drugs • Antihistamines Which of the following is not typically seen in anaphylaxis? • Wheeze • Bradycardia • Hypotension • Hives • Throat swelling Which of the following tests helps identify an allergen that causes an allergic reaction? • Serum protein electrophoresis • Eosinophil count • Radioallergosorbent test (RAST) • Monteux testing • Serum IgM levels Which of the following foods accounts for 2 to 3% of food allergies in children under 1 year of age? • ...regulating the movement of molecules and ions into the cells. Which of the following is involved in the biosynthesis of immunoglobulins in plasma cells? • Smooth endoplasmic reticulum • The cell membrane • Lysosomes • Mitochondria • Rough endoplasmic reticulum Which of the following statements is true? • The cell is dynamic and constantly in motion. • Most of the cells have a round ball-like shape. • The cytoplasm is highly structured by the cytoskeleton and cilia. • Organelles swim randomly within the cytosol. • Cells have limited turnover in order to conserve energy. Which of the cellular functions is the first to be affected by hypoxia? • Communication with the surrounding environment • Degradation and recycling of cellular components • Protein synthesis • ATP generation • DNA synthesis Which of the following is one of the mechanisms by which infections cause cell injury? • Increasing oxygen concentration • Activating the host's immune system • Generating UV light • Accelerating cellular senescence • Releasing ionizing radiation • Formation of toxic metabolites • Modification of the cell membrane sulfhydryl group • Inhibition of RNA polymerase II • Reduction of the oxygen-carrying capacity of the blood • Formation of oxygen-containing free radicals Which of the following will result from reduced activity of Na ⁺ /K ⁺ - ATPase? • Shrinkage of the intracellular organelles • Increased intracellular K⁺ concentration • Increased extracellular Ca⁺⁺ concentration • Increased intracellular Na⁺ concentration • Movement of water to the extracellular compartment Which of the following will result from the deactivation of oxidative phosphorylation? • Accumulation of lactic acid • Decreased intracellular H⁺ concentration • Increased protein synthesis • Decreased inorganic phosphate concentration • Increased glycogen synthesis Which of the following is responsible for activating the apoptosis pathway in a mitochondrial injury? • Cytochrome P450 • Chloride ions • Proton ions • Cytochrome C • Pyruvate The changes made by a cell in response to injury is referred to as...? • ...remodeling. • ...transformation. • ...trauma. • ...chemical toxins. • ...infections. • ...normal levels of oxygen. • ...high storage levels of vitamins. Cancer is a response to cell injury acting through which of the following mechanisms?