Clinical Pathology
Exam Answer Key
Course Introduction
Clinical Pathology is a vital discipline in the medical sciences that focuses on the study and diagnosis of diseases through the laboratory analysis of bodily fluids such as blood, urine, and tissues. This course covers the fundamental principles and practical applications of clinical laboratory testing, including hematology, clinical chemistry, microbiology, immunology, and molecular diagnostics. Students will learn about specimen collection, test methodologies, interpretation of laboratory results, and the significance of these results in the diagnosis, treatment, and monitoring of various diseases. Emphasis is placed on the integration of laboratory data with clinical findings to support effective patient care and management.
Recommended Textbook
Basic Pathology 9th Edition by Vinay Kumar
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23 Chapters
265 Verified Questions
265 Flashcards
Source URL: https://quizplus.com/study-set/1129 Page 2
Chapter 1: Cell Injury, Cell Death, and Adaptations
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9 Verified Questions
9 Flashcards
Source URL: https://quizplus.com/quiz/22166
Sample Questions
Q1) A 30-year-old woman who had leukemia was treated with bone marrow transplantation. She developed a skin rash that was interpreted as a sign of a graft-versus- host reaction. A skin biopsy was performed. In the epidermis, there were scattered dead epidermal cells that had rounded contours and pyknotic nuclei. This form of cell death is caused by
A) activation of caspases through receptor transmitted signals on the cell surface
B) inhibition of ATPase
C) inhibition of oxidative phosphorylation
D) activation of lysosomal enzymes
E) depletion of glycogen
Answer: A
Q2) Uptake of bacteria into the cytoplasm of neutrophilic leukocytes is called
A) Autophagocytosis
B) heterophagocytosis
C) exocytosis
D) pinocytosis
E) involution
Answer: B
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Page 3
Chapter 2: Inflammation and Repair
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11 Verified Questions
11 Flashcards
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Sample Questions
Q1) Transmembrane adhesive heterodimeric proteins, composed of an a and a ß chain, are expressed on activated leukocytes during inflammation. They bind primarily to intercellular adhesion molecule 1 (ICAM-1) and vascular cell adhesion molecule 1 (VCAM-1), both of which belong to the family of proteins known as A) selectins
B) integrins
C) immunoglobulins
D) lectins
E) growth factors
Answer: C
Q2) Which of the following mediators of inflammation has chemotactic properties and is increased in persons taking aspirin?
A) Thromboxane A<sub>2</sub>
B) Prostaglandin E<sub>2</sub>
C) Platelet-activating factor
D) Leukotriene B<sub>4</sub>
E) Interleukin-1
Answer: D
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Chapter 3: Hemodynamic Disorders, Thromboembolism, and Shock
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12 Verified Questions
12 Flashcards
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Sample Questions
Q1) Which of the following is the most common site for arteriolar thromboembolization?
A) Brain
B) Heart
C) Kidneys
D) Lower extremities
E) Eyes
Answer: D
Q2) Which form of hemorrhage is most typical of defective platelet function seen in uremia (end stage kidney failure)?
A) Multiple petechiae
B) Multiple ecchymoses
C) Solitary ecchymoses
D) Hematoma
E) Hemarthrosis
Answer: A
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Page 5
Chapter 4: Diseases of the Immune System
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20 Verified Questions
20 Flashcards
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Sample Questions
Q1) A 10-year-old girl presented with lilac or heliotrope discoloration of the upper eyelids, muscle weakness, and dusky red patches over the knuckles, elbows, and knees. Which antibody was most likely found in this patient's blood?
A) Anti-histidyl-t-RNA synthetase
B) Anti-double-stranded DNA
C) Anti-single-stranded DNA
D) Anti-topoisomerase
E) Anti-ribonucleoprotein antibody SS-A (Ro)
Q2) Amyloid deposited in the tissue of patients who are on dialysis for chronic renal failure is most often biochemically related to which precursor protein?
A) Light chain of immunoglobulin G
B) Serum amyloid associated (SAA) protein
C) Transthyretin
D) ß2-microglobulin
E) Calcitonin
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6
Chapter 5: Neoplasia
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14 Verified Questions
14 Flashcards
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Sample Questions
Q1) Which one of the following carcinomas is locally invasive but rarely forms metastases in lymph nodes and distant sites?
A) Basal cell carcinoma of the skin
B) Squamous cell carcinoma of the skin
C) Oat cell carcinoma of the lung
D) Transitional cell carcinoma of the urinary bladder
E) Adenocarcinoma of the stomach
Q2) Which is the most common radiation-induced cancer in humans?
A) Thyroid cancer
B) Chronic lymphocytic leukemia
C) Breast cancer
D) Lung cancer
E) Salivary gland carcinoma
Q3) In which cell function is BRCA1, a gene mutated in women with familial breast carcinoma, involved?
A) Cell adhesion
B) Growth inhibition
C) Signal transduction
D) Cell surface channel
E) Transcriptional regulation and DNA repair
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Chapter 6: Genetic and Pediatric Diseases
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16 Verified Questions
16 Flashcards
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Sample Questions
Q1) An infertile woman was examined cytogenetically and was found to have deletions of portions of the long arm and short arm of the chromosome X, resulting in a ring chromosome, 46,X,r(X). Which of the following is the most likely diagnosis?
A) Gonadal dysgenesis
B) Hermaphroditism
C) Male pseudohermaphroditism
D) Female pseudohermaphroditism
E) Turner syndrome
Q2) Which malignancy occurs at a high rate in persons affected with Down syndrome?
A) Acute lymphoblastic leukemia
B) Chronic lymphocytic leukemia
C) Chronic myelogenous leukemia
D) Plasmacytoma
E) Brain tumors
Q3) Most teratomas in infants are located in the
A) cranium
B) mediastinum
C) gonads
D) retroperitoneum
E) sacrococcygeal region
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Chapter 7: Environmental and Nutritional Diseases
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8 Verified Questions
8 Flashcards
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Sample Questions
Q1) Lead absorbed from the environment during infancy and childhood is predominantly deposited in which internal organ or organ system?
A) Brain
B) Liver
C) Lungs
D) Bones
E) Skeletal muscles
Q2) Which is the most common preventable form of mental retardation in the United States?
A) Fetal rubella infection
B) Fetal toxoplasmosis
C) Fetal alcohol syndrome
D) Fetal cytomegalovirus infection
E) Fetal herpesvirus infection
Q3) Wernicke-Korsakoff syndrome in chronic alcoholics is caused by a deficiency of
A) vitamin A
B) vitamin B<sub>1</sub>
C) vitamin C
D) vitamin D
E) vitamin K
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Chapter 8: General Pathology of Infectious Diseases
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14 Verified Questions
14 Flashcards
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Sample Questions
Q1) A 60-year-old man known to have diabetes mellitus was admitted to the hospital in ketoacidosis. He had a massive, invasive infection of the nasal sinuses. Biopsy disclosed fungal infection, which was most likely caused by A) Candida albicans
B) Aspergillus fumigatus
C) Mucor
D) Histoplasma capsulatum
E) Pneumocystis carinii
Q2) Diarrhea caused by cholera toxin results from the action of this toxin on cells of the A) stomach
B) small intestine
C) cecum
D) transverse colon
E) rectum
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Chapter 9: Blood Vessels
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6 Verified Questions
6 Flashcards
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Sample Questions
Q1) Aneurysms caused by weakening or destruction of the arterial wall by bacteria are called
A) berry aneurysms
B) fusiform aneurysms
C) saccular aneurysms
D) mycotic aneurysms
E) cirsoid aneurysms
Q2) Which type of vasculitis is typically associated with bronchial asthma?
A) Temporal (giant cell) arteritis
B) Takayasu arteritis
C) Kawasaki disease
D) Churg-Strauss syndrome
E) Henoch-Schönlein purpura
Q3) Arterial hypertension of Cushing syndrome is associated with A) elevation of serum renin
B) elevation of angiotensin in blood
C) potassium retention in the kidneys
D) reduced sodium excretion in urine
E) increased diuresis
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Chapter 10: Heart
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16 Verified Questions
16 Flashcards
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Sample Questions
Q1) Bacillary angiomatosis is typically found in AIDS patients and is caused by
A) herpesvirus type 8
B) herpesvirus type 3
C) herpesvirus type 6
D) Bartonella henselae
E) measles virus
Q2) The most common location of atrial septal defects is in the area of the
A) fossa ovalis
B) sinus venosus
C) septum primum
D) coronary sinus
E) supravalvular endocardium
Q3) The most common cause of mitral stenosis in adults is
A) floppy mitral valve
B) rheumatic endocarditis
C) bacterial endocarditis
D) mitral annular calcification
E) nonbacterial thrombotic endocarditis
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Chapter 11: Hematopoietic and Lymphoid Systems
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21 Verified Questions
21 Flashcards
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Sample Questions
Q1) Which form of lymphoma tends to arise in the gastrointestinal tract at the site of chronic inflammation, such as chronic sialadenitis in Sjögren disease or chronic gastritis caused by Helicobacter pylori?
A) Pre-B, pre-T lymphoblastic lymphoma
B) Mantle cell lymphoma
C) Marginal cell lymphoma
D) Peripheral T-cell lymphoma
E) Burkitt lymphoma
Q2) Which of the following bleeding tests is abnormal in patients with von Willebrand disease?
A) Prolonged bleeding time
B) Thrombocytopenia
C) Prolonged prothrombin time
D) Shortened partial thromboplastin time
E) Increased levels of factor VIII in plasma
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13
Chapter 12: Lung
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16 Verified Questions
16 Flashcards
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Sample Questions
Q1) Which of the following pathogens is the most common cause of pulmonary abscesses?
A) Haemophilus influenzae
B) Staphylococcus aureus
C) Streptococcus pneumoniae
D) Pseudomonas aeruginosa
E) Escherichia coli
Q2) Which is the most prevalent chronic occupational lung disease found worldwide?
A) Complicated coal workers' pneumoconiosis
B) Asbestosis
C) Berylliosis
D) Silicosis
E) Stannosis
Q3) Which bacterium is the most common cause of lobar pneumonia in chronic alcoholics?
A) Haemophilus influenzae
B) Staphylococcus aureus
C) Streptococcus pneumoniae
D) Pseudomonas aeruginosa
E) Legionella pneumophila
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Chapter 13: Kidney and Its Collecting System
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7 Verified Questions
7 Flashcards
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Sample Questions
Q1) Which kidney disease characterized by nephrotic syndrome, microscopic hematuria, and glomerular deposits of C3 complement and properdin is caused by an autoantibody called C3 nephritic factor?
A) Membranoproliferative glomerulonephritis type II
B) Focal segmental glomerulosclerosis
C) Membranous nephropathy
D) IgA nephropathy
E) Acute postinfectious glomerulonephritis
Q2) The PKD1 gene encoding polycystin-1 is a large integral membrane protein. It is typically found in persons who have which of the following diseases?
A) Childhood polycystic kidney disease
B) Adult polycystic disease
C) Adult onset renal medullary cystic disease
D) Glomerulocystic disease
E) Acquired renal cystic disease
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Chapter 14: Oral Cavity and Gastrointestinal Tract
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22 Verified Questions
22 Flashcards
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Sample Questions
Q1) Polyps of Peutz-Jeghers syndrome are best classified as
A) serrated adenomas
B) hyperplastic polyps
C) tubular adenoma
D) villous adenomas
E) hamartomas
Q2) Which intestinal malabsorption syndrome is accompanied by a complete absence of chylomicrons, very-low-density lipoproteins, and low-density lipoproteins in plasma?
A) Crohn disease
B) Celiac sprue
C) Tropical sprue
D) Lactase deficiency
E) Abetalipoproteinemia
Q3) Primary tumors of the peritoneum are called
A) adenocarcinomatosis peritonei
B) pseudomyxoma peritonei
C) peritoneal sarcoma
D) mesothelioma
E) myxomatosis
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Page 16
Chapter 15: Liver, Gallbladder, and Biliary Tract
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18 Verified Questions
18 Flashcards
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Sample Questions
Q1) Ascending cholangitis is most often caused by
A) Staphylococcus aureus
B) Streptococcus pneumoniae
C) Escherichia coli
D) Salmonella typhi
E) Ascaris lumbricoides
Q2) What is the most common cause of neonatal cholestasis?
A) a1-antitrypsin deficiency
B) Biliary atresia
C) Cytomegalovirus infection
D) Galactosemia
E) Unknown
Q3) Cryoglobulinemia is found in chronic hepatitis caused by which hepatotropic virus?
A) Hepatitis A virus (HAV)
B) HBV
C) HCV
D) HDV
E) HEV
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17
Chapter 16: Pancreas
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4 Verified Questions
4 Flashcards
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Sample Questions
Q1) Which of the following is the most common cause of acute pancreatitis?
A) Alcohol
B) Thiazide diuretics
C) Viruses
D) Trauma
E) Vascular thrombosis
Q2) Which of the following genes is the most frequently mutated oncogene in ductal adenocarcinoma of the pancreas?
A) p53
B) K-RAS
C) MYC
D) RB1
E) SMAD4
Q3) Hereditary pancreatitis is most likely to be found in persons harboring the mutation of which of the following genes?
A) <sub>1</sub>-Antitrypsin
B) Amylase
C) Cationic trypsinogen
D) Enterokinase
E) Alkaline phosphatase
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Chapter 17: Male Genital System and Lower Urinary Tract
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11 Verified Questions
11 Flashcards
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Sample Questions
Q1) Which of the following risk factors is most often encountered in patients with urothelial carcinoma?
A) Industrial exposure to arylamines
B) Industrial exposure to azo dyes
C) Cigarette smoking
D) Long-term use of analgesics
E) Infection with Schistosoma haematobium
Q2) Seminomas tend to metastasize first to which of the following sites?
A) Internal iliac lymph nodes
B) External iliac lymph nodes
C) Mesenteric lymph nodes
D) Retroperitoneal para-aortic lymph nodes
E) Urinary bladder
Q3) Penile carcinomas tend to metastasize first to which of the following nodes?
A) Inguinal lymph nodes
B) Obturator lymph nodes
C) Internal ileac lymph nodes
D) External iliac lymph nodes
E) Paraortic abdominal lymph nodes
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Page 19
Chapter 18: Female Genital System and Breast
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17 Verified Questions
17 Flashcards
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Sample Questions
Q1) A 55-year-old woman who has diabetes mellitus complains of genital itching. Examination shows whitish plaques on the mucosa of the vulva and vagina. Which of the following infectious agents most likely caused these changes?
A) Human papillomavirus
B) Herpes simplex virus type 2
C) Trichomonas vaginalis
D) Gardnerella vaginalis
E) Candida albicans
Q2) Assuming that a vaccination will be discovered for the human papillomavirus in women, it is expected that the vaccination will reduce the incidence of carcinoma at which of the following sites?
A) Clitoris
B) Vagina
C) Cervix
D) Endometrium
E) Ovary
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Chapter 19: Endocrine System
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Sample Questions
Q1) Vascular endothelial growth factor (VEGF) is implicated in the pathogenesis of which complication of diabetes?
A) Cerebral infarcts
B) Intraretinal microangiopathy
C) Diabetic glomerulosclerosis
D) Gangrene of the foot
E) Peripheral neuropathy
Q2) Calcifications of the basal ganglia are complications associated with parkinsonian-like movement disorders and calcification of the lens with cataract formation. These complications are most often associated with which of the following conditions?
A) Parathyroid adenoma
B) Secondary parathyroid hyperplasia
C) Tertiary hyperparathyroidism
D) Parathyroid carcinoma
E) Hypoparathyroidism
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21
Chapter 20: Bones, Joints, and Soft Tissue Tumors
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Sample Questions
Q1) A 20-year-old man is being treated for a soft tissue tumor of the lower extremity. The tumor is composed of malignant spindle-shaped cells and epithelial cells that form gland-like structures. Which of the following is the most likely diagnosis?
A) Leiomyosarcoma
B) Malignant fibrous histiocytoma
C) Primitive neuroectodermal tumor
D) Synovial sarcoma
E) Rhabdomyosarcoma
Q2) Loss of heterozygosity, structural rearrangements, or point mutations of the retinoblastoma tumor suppressor gene (RB) are found in 60%-70% of all sporadic bone tumors. Which of the following is the best classification for this tumor?
A) Osteosarcoma
B) Osteoblastoma
C) Osteoid osteoma
D) Chondrosarcoma
E) Ewing sarcoma
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22
Chapter 21: Peripheral Nerves and Muscles
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1 Verified Questions
1 Flashcards
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Sample Questions
Q1) Guillain-Barré syndrome is mediated by which form of immune hypersensitivity reaction?
A) Atopic IgE-mediated reaction
B) Cytotoxic IgG antibody-mediated reaction
C) Circulating immune complex-mediated reaction
D) T cell-mediated reaction
E) Graft-versus-host reaction
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Chapter 22: Central Nervous System
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4 Flashcards
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Sample Questions
Q1) Posttraumatic hydrocephalus is most often caused by which of the following?
A) Hypersecretion of cerebrospinal fluid
B) Obstruction of the aqueduct
C) Obstruction of the foramen of Luschka
D) Obstruction of the foramen of Magendie
E) Obstruction of cerebrospinal fluid absorption
Q2) Fetal alcohol syndrome is most often characterized by which of the following disorders?
A) Encephalocele
B) Anencephaly
C) Macrogyria
D) Microencephaly
E) Lissencephaly
Q3) Which of the following is the dominant protein component of neuritic plaques in the brain in Alzheimer disease?
A) Apoprotein
B) Tau protein
C) Neurofibrillin
D) Microtubules-associated protein 2 (MAP2)
E) A derived from amyloid precursor protein (APP)
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Chapter 23: Skin
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Sample Questions
Q1) Which of the following skin lesions will most likely progress to invasive squamous cell carcinoma?
A) Actinic keratosis
B) Seborrheic keratosis
C) Seborrheic dermatitis
D) Epidermal inclusion cyst
E) Steatocystoma multiplex
Q2) Which of the following skin lesions becomes darker and more pigmented upon exposure to sunlight?
A) Vitiligo
B) Lentigo
C) Ephelis
D) Congenital melanocytic nevus
E) Dysplastic nevus
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