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Ischemia and other toxic injuries increase the accumulation of intracellular calcium as a resul
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1. t of:
u1
A) release of stored calcium from the mitochondria.
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B) improved intracellular volume regulation.
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C) decreased influx across the cell membrane.
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D) attraction of calcium to fatty infiltrates.
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The patient is found to have liver disease, resulting in the removal of a lobe of his liver.
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2. Adaptation to the reduced size of the liver leads to
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of the remaining liver cells u1 u1 u1 u1
.
A) metaplasia
B) organ atrophy u1
C) compensatory hyperplasia u1
D) physiologic hypertrophy u1
A person eating peanuts starts choking and collapses. His airway obstruction is partiall
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y cleared, but he remains hypoxic until he reaches the hospital. The prolonged cell hyp
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3. oxia caused a cerebral infarction and resulting
u1 u1 u1 in the brain. u1 u1 u1 u1 u1 u1
A) caspase activation u1
B) coagulation necrosis u1
C) rapid phagocytosis
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D) protein p53 deficiencyu1 u1
Bacteria and viruses cause cell damage by
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4. , which is unique from the intracellula u1 u1 u1 u1 u1 u1
r damage caused by other injurious agents.
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A) disrupting the sodium/potassium ATPase pump u1 u1 u1 u1
B) interrupting oxidative metabolism processes u1 u1 u1
C) replicating and producing continued injury
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D) decreasing protein synthesis and function u1 u1 u1 u1
The patient has a prolonged interruption in arterial blood flow to his left kidney, causing hyp
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5. oxic cell injury and the release of free radicals. Free radicals damage cells by:
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A) destroying phospholipids in the cell membrane.
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B) altering the immune response of the cell.
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C) disrupting calcium storage in the cell.
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D) inactivation of enzymes and mitochondria. u1 u1 u1 u1
,6. Injured cells have impaired flow of substances through the cell membrane as a result of:
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A) increased fat load. u1 u1
B) altered permeability. u1
C) altered glucose utilization.
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D) increased surface receptors. u1 u1
7. Reversible adaptive intracellular responses are initiated by:
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A) stimulus overload. u1
B) genetic mutations. u1
C) chemical messengers. u1
D) mitochondrial DNA. u1
8. Injured cells become very swollen as a result of:
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A) increased cell protein synthesis. u1 u1 u1
B) altered cell volume regulation.
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C) passive entry of potassium into the cell.
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D) bleb formation in the plasma membrane.
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A diabetic patient has impaired sensation, circulation, and oxygenation of his feet. He steps
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on a piece of glass, the wound does not heal, and the area tissue becomes necrotic. The nec
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9. rotic cell death is characterized by:
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A) rapid apoptosis.u1
B) cellular rupture. u1
C) shrinkage and collapse. u1 u1
D) chronic inflammation. u1
A 99-year-
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10. old woman has experienced the decline of cell function associated with age. A group of the
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ories of cellular aging focus on programmed:
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A) changes with genetic influences. u1 u1 u1
B) elimination of cell receptor sites. u1 u1 u1 u1
C) insufficient telomerase enzyme. u1 u1
D) DNA mutation or faulty repair.
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An 89-year-
u1
old female patient has experienced significant decreases in her mobility and stamina durin
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g a 3-
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11. week hospital stay for the treatment of a femoral head fracture. Which of the following phe
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nomena most likely accounts for the patients decrease in muscle function
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that underlies her reduced mobility?
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A) Impaired muscle cell metabolism resulting from metaplasia
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, B) Dysplasia as a consequence of inflammation during bone remodeling
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C) Disuse atrophy of muscle cells during a prolonged period of immobility
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D) Ischemic atrophy resulting from vascular changes while on bedrest
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A 20-year-
u1
old college student has presented to her campus medical clinic for a scheduled Papanicolaou
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12. (Pap) smear. The clinician who will interpret the smear will examine cell samples for evid
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ence of: u1
A) changes in cell shape, size, and organization. u1 u1 u1 u1 u1 u1
B) the presence of unexpected cell types.
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C) ischemic changes in cell samples. u1 u1 u1 u1
D) abnormally high numbers of cells in a specified field. u1 u1 u1 u1 u1 u1 u1 u1
Which of the following pathophysiologic processes is most likely to result in metastatic calci
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13. ation?
A) Benign prostatic hyperplasia u1 u1
B) Liver cirrhosis u1
C) Impaired glycogen metabolism u1 u1
D) Hyperparathyroidism
Despite the low levels of radiation used in contemporary radiologic imaging, a radiology tec
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ician is aware of the need to minimize her exposure to ionizing radiation. What is the primar
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14. rationale for the technicians precautions?
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A) Radiation stimulates pathologic cell hypertrophy and hyperplasia.
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B) Radiation results in the accumulation of endogenous waste products in the cytoplasm.
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C) Radiation interferes with DNA synthesis and mitosis.
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D) Radiation decreases the action potential of rapidly dividing cells.
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The parents of a 4-year-
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old girl have sought care because their daughter has admitted to chewing and swallowing i
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15. mported toy figurines that have been determined to be made of lead. Which of the following
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blood tests should the care team prioritize?
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A) White blood cell levels with differential u1 u1 u1 u1 u1
B) Red blood cell levels and morphology
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C) Urea and creatinine levels
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D) Liver function panel u1 u1
A 70-year-
u1
old male patient has been admitted to a hospital for the treatment of a recent hemorrhagic st
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16. ke that has left him with numerous motor and sensory deficits. These deficits
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are most likely the result of which of the following mechanisms of cell injury?
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A) Free radical injury u1 u1