NUR 502 Advanced Pathophysiology Exam 1 Questions and Correct Answers Updated Version Score 100%NUR 502 Advanced Pathophysiology Exam 1 Questions and Correct Answers Updated Version Score 100%

Advanced Pathophysiology Exam 1 200+ Questions and Correct Answers Updated Version Score 100% 3 pathophysiolgical types of AKI - Correct Answer prerenal intrarenal (intrinsic) postrenal 7 possible mechanisms of fatty accumulation - Correct Answer -increased movement of free fatty acids into the liver -Failure of metabolic process that converts fatty acids to phospholi pids resulting in the preferential conversion of the fatty acids to triglycerides -increased synthesis of triglycerides from fatty acids -decreased synthesis of apoproteins (lipid acceptors) -failure of lipids to bind with apoproteins and form lipoproteins -failure of mechanisms that transport lipoproteins out of the cell -direct damage to the ER by free radicals released by alcohol's toxic effects A cellular change, which is often precancerous, is called: a. hyperplasia. b. metaplasia. c. dysplasia. d. hypertrophy. - Correct Answer C A certain disease is currently found in 1 of every 10 people in the country and 1,000 people contract the disease yearly. The population of the country is 4,500,000. Which of the following statements is correct? a. The prevalence of t he disease is 10% and the incidence is .02%. b. The prevalence of the disease is .02% and the incidence is 10%. c. Neither is correct. d. There is insufficient data - Correct Answer A A mountain climber is stranded at 23,000 feet in the Swiss Alps and has lost all his equipment and supplies in an avalanche. Subsequently, he suffers cell injury due to impaired ATP production. The reason for the decrease in ATP is which of the following? a. enzyme inhibition b. uncoupling c. hypoxia d. none of the above - Correct Answer C abnormal substances that cause cell accumulation - Correct Answer -endogenous: product of abnormal metabolism synthesis -exogenous: infectious agent or material acute tubular necrosis - Correct Answer damage to the renal tubules due to presence of toxins in the urine or to ischemia most common cause of hospital acquired ARF An elderly patient develops an obstruction in his left middle cerebral artery. The brain tissue supplied by this artery becomes hypoxic. The best explanation for this is which of the following? a. the obstruction results in decreased blood flow b. the obstruction results in decreased hemoglobin in the blood c. while blood flow stays the same, the obstruction reduces oxygen content in the blood d. none of the above explain the reason for the hypoxia - Correct Answer A apoptosis - Correct Answer -event that results in cell death -quiet, organized, programmed process resulting in elimination of individual cells Apoptosis - mitochondrial pathway - Correct Answer -healthy cell - protein Bcl -2 on surface - inhibits apoptosis -internal damage to cell -protein Bax migrates to the surface of the mitochondria where it inhibits protective effect of Bcl -2 -inserts self into outer mitochondrial membrane punching holes in it -cytochrome c leaks out -cytochrome c binds to the protein Apaf -1 -complexes aggregate to form apoptosomes -bind to and activate caspase -9 -cleaves and activates other caspases (executioner ones) -digestion of structural proteins in the cytoplasm -degradation of chromosomal DNA -phagocytosis of the cell Apoptosis death -receptor pathway - Correct Answer -Fas and TNF receptor are integral membrane proteins with their receptor domains exposed at the surface of the cell -binding of the complementary death activator (FasL and TNF) transmits a signal to the cytoplasm -actiavation of caspase 8 -initiates cascade of caspase activation -phagocytosis of cell apoptosis -inducing - Correct Answer -neurons have another way to self -destruct that does not use caspases -AIF is a protein that is normally located in the intermembrane space of mitochondria -when cell receives death signal, AIF: -released from mitochondria -migrates to nucleus -binds to DNA -triggers destruction of the DN A and cell death Atrophy - Correct Answer Decrease or shrinkage in cellular size.Most common in skeletal muscle, heart, secondary sex organs, and brain. calculate the anion gap - Correct Answer AG = (Na + K) - (Cl + HCO3) calculation for corrected serum sodium - Correct Answer G= (p t. glucose - 100)/100 (1.6 mEq/L x G) + (serum sodium) calculation for ideal TBW - Correct Answer (current Na X TBW)/140 Calculation for serum osmolality - Correct Answer OSM = 2 X [sodium concentration] + [glucose concentration/18] + [BUN/2.8] calculation for water deficit - Correct Answer ((current Na X TBW)/140) - TBW calculation for water excess - Correct Answer the difference between current TBW an d ideal TBW water excess = weight (kg) x (0.5 F) x (1 - (Na/125)) (0.6 M) (0.7 infants) calculation of water def - Correct Answer the difference between ideal TBW and current TBW = weight in kg x (0.4 F) (0.5 M) (0.6 infants) caseous necrosis - Correct Answer commonly results from tuberculous pulmonary infection combination of coagulative and liquefactive the dead cells disintegrate but the debris is not digest completely by hydrolases tissues appear soft and granular and resemble clumped cheese Cause of metaplasia - Correct Answer develops from reprogramming of stem cells. Found in association with tissue damage, repair, and regeneration. causes of hypervolemia - Correct Answer Heart failure Kidney disease Cirrhosis Overdose of sodium concentrated fluids Fluid shifts in burns Prolonged use of corticosteroids Severe stress