Quiz Answers
- Warfarin should be used with caution in the following:
- a. Alcoholic liver disease
- b. Gastrointestinal bleeding
- c. Recent neurosurgery
- d. Liver impairment ✅
- Isozymes of 2C can greatly affect warfarin
- a. True ✅
- b. False
- c. None
- Absolute lymphocytosis (5000/mm³) without adenopathy, hepatosplenomegaly, anemia, thrombocytopenia is what stage in CLL prognosis Scoring-Rai Staging System?
- a. Stage 0 ✅
- b. Stage I
- c. Stage II
- d. Stage III
- e. Stage IV
- Conventional treatment for Rai stage II is
- a. Antibiotics
- b. Chemotherapy ✅
- c. Antivirals
- d. Rest
- In patients with low numbers of neoplastic cells, sometimes due to treatment, PCR to amplify DNA can improve sensitivity and detect signs of relapse.
- a. True ✅
- b. False
- c. None
- Chronic lymphocytic leukemia is most common in what kind of people?
- a. Young adults
- b. Older adults ✅
- c. None
- Absolute lymphocytosis and thrombocytopenia (< 100,000/mm³) with or without lymphadenopathy, hepatomegaly, splenomegaly, or anemia is what stage in CLL prognosis Scoring-Rai Staging System?
- a. Stage 0
- b. Stage I
- c. Stage II
- d. Stage III
- e. Stage IV ✅
- Chronic Lymphocytic Leukemia is characterized by peripheral blood and bone marrow
- a. Lymphocytopenia
- b. Lymphocytosis ✅
- Absolute lymphocytosis with either hepatomegaly or splenomegaly with or without lymphadenopathy is what stage in CLL prognosis Scoring-Rai Staging System?
- a. Stage 0
- b. Stage I
- c. Stage II ✅
- d. Stage III
- e. Stage IV
- Absolute lymphocytosis without lymphadenopathy, hepatosplenomegaly, anemia, or thrombocytopenia is what stage in CLL prognosis Scoring-Rai Staging System?
- a. Stage 0
- b. Stage I ✅
- c. Stage II
- d. Stage III
- e. Stage IV
- In Chronic Lymphocytic Leukemia, the lymphocyte appearance: small or slightly larger than normal, hypercondensed nuclear chromatin pattern, bare nuclei called “smudge cells” are common.
- a. Occer-ball ✅
- b. Basketball
- c. Football
- d. Tennis-ball
- Which of the following forms of Hb molecule has the lowest affinity for oxygen?
- a. Tense ✅
- b. Relaxed
- c. Arterial
- d. Venous
- What is the recommended cleaner for removing all oil from the objective lens?
- a. 70% alcohol or lens cleaner ✅
- b. Xylene
- c. Water
- d. Benzene
- Intravascular hemolysis is the result of trauma to RBCs while in the circulation
- a. True ✅
- b. False
- Blood Hb level changes in the morning and evening time.
- a. 1 gm%
- b. 2 gm%
- c. 1.5 gm% ✅
- d. 2.5 gm%
- The shape of a cell is maintained by which of the following?
- a. Microtubules ✅
- b. Spindle Fibers
- c. Ribosomes
- d. Centrioles
- At which month of fetal development does the bone marrow become the primary site of hematopoiesis?
- a. 2nd
- b. 5th
- c. End of 6th month ✅
- d. End of 7th month
- Which types of cells develop from yolk sacs (Mesoblastic phase)?
- a. Hb F, Hb A2, and Hb A
- b. Gower 1 and Gower 2 Hgb
- c. Portland Hgb
- d. Only Erythroblasts ✅
- Normal Adult Hb A contains the following polypeptide chains:
- a. Alpha and beta ✅
- b. Alpha and epsilon
- c. Alpha and delta
- d. Alpha and brotherton
- Allergic reactions are frequently associated with an increase in the presence of:
- a. Lymphocytes
- b. Neutrophils
- c. Monocytes
- d. Eosinophils ✅
- Lipid exchange between the RBC membrane and the plasma occurs:
- a. To replace lost lipids in the membrane ✅
- b. To provide a mechanism for excretion of lipid-soluble RBC waste products
- c. To ensure symmetry between the composition of the interior and exterior lipid layers
- d. To provide lipid-soluble nutrients to the RBC
- After the microscope has been adjusted for Kohler illumination, light intensity should never be regulated by using the…
- a. Rheostat
- b. Neutral density filter
- c. Kohler magnifier
- d. Condenser ✅
- Which of the following types of microscopy is valuable in the identification of crystals that are able to rotate light?
- a. Compound brightfield
- b. Darkfield
- c. Polarizing ✅
- d. Phase-contrast
- During the Medullary Phase of hematopoietic development, which bone is the first to show hematopoietic activity?
- a. Femur
- b. Iliac Crest
- c. Skull
- d. Clavicle ✅
- Given the following values, calculate the RPI Observed reticulocyte count – 6% Hct-30°%
- a. 2 ✅
- b. 3
- c. 4
- d. 5
- The lipids of the RBC membrane are arranged:
- a. In chains beneath a protein exoskeleton
- b. So that the hydrophobic portions are facing the plasma
- c. In a hexagonal lattice
- d. In two layers that are not symmetric in composition ✅
- The hexose monophosphate pathway activity increases the RBC source of
- a. Glucose and lactic acid
- b. 2,3-BPG and methemoglobin
- c. NADPH and reduced glutathione ✅
- d. ATP and other purine metabolites
- Which single feature of normal RBCs is most responsible for limiting their life span?
- a. Loss of mitochondria
- b. Increased flexibility of the cell membrane
- c. Reduction of Hb iron
- d. Loss of nucleus ✅
- In the Iron cycle, the transferrin receptor carries:
- a. Iron out of duodenal cells from the intestinal lumen
- b. Iron out of duodenal cells into the plasma
- c. Transferrin-bound iron in the plasma ✅
- d. Transferrin-bound iron into erythrocytes
- A multilineage cytokine among the ILs is
- a. IL-1 ✅
- b. IL-2
- c. IL-3
- d. IL-4
- Which of the following cells may develop in sites other than the bone marrow?
- a. Monocyte
- b. Lymphocyte ✅
- c. Megakaryocyte
- d. Neutrophil
- The acceptable range for hemoglobin values on a control sample is 13 ± 0.4 g/dL. A hemoglobin determination is performed five times in succession on the same control sample. The results are (in g/dL): 12, 12.3, 12, 12.2, and 12.1. These results are:
- a. Precise, but not accurate ✅
- b. Both accurate and precise
- c. Accurate, but not precise
- d. Neither accurate nor precise
- The layer of the erythrocyte membrane that is largely responsible for the shape, structure, and deformability of the cell is the
- a. Integral protein
- b. Exterior lipid
- c. Peripheral protein ✅
- d. Interior lipid
- During midfetal life, the primary source of blood cells is the:
- a. Bone marrow
- b. Spleen
- c. Lymph Nodes
- d. Liver ✅
- According to Pasteur’s statements, which one of the following is true
- a. Living organisms discriminate between stereoisomers ✅
- b. Fermentation is an aerobic process
- c. Living organisms do not discriminate between stereoisomers
- d. Both a and b
- “I found floating therein earthly particles, some green streaks, spirally wound serpent-wise, and orderly arranged, the whole circumstance of each of these streaks was about the thickness of a hair on one’s head”… These words are of
- a. Leeuwenhoek ✅
- b. A. Jenner
- c. Pasteur
- d. Koch
- The principle light-trapping pigment molecule in plants, Algae, and cyanobacteria is
- a. Chlorophyll a ✅
- b. Chlorophyll b
- c. Porphyrin
- d. Rhodopsin
- During the Biogeochemical cycle, some amount of elemental carbon was utilized by the microorganisms. The phenomenon is called as
- a. Dissimilation
- b. Immobilization ✅
- c. Decomposition
- d. Neutralization
- Who demonstrated that open tubes of broth remained free of bacteria when air was free of dust.
- a. Abbé Spallanzani
- b. John Tyndall ✅
- c. Francesco Redi
- d. Pasteur
- Reverse isolation would be appropriate for
- a. A patient with tuberculosis ✅
- b. A patient who has had minor surgery
- c. A patient with glaucoma
- d. A patient with leukemia
- The symptom “general feeling of illness and discomfort” is called
- a. Cystitis
- b. Malaise ✅
- c. Anaphylactic shock
- d. Arthritis
- On soybean, which of the following forms symbiosis
- a. Azatobactor paspali
- b. Rhizobium
- c. Nostoc
- d. Bradyrhizobium ✅
- Who provided the evidence that bacteriophage nucleic acid but not protein enters the host cell during infection
- a. Alfred D. Hershey & Leonard Tatum in 1951.
- b. Alfred D. Hershey & Zindar Lederberg in 1951.
- c. Alfred D. Hershey & Martha Chase in 1952. ✅
- d. Alfred D. Hershey & Macleod in 1952.
- Spirulina belongs to
- a. Xanthophyceae
- b. Cyanophyceae ✅
- c. Rhodophyceae
- d. Pheophyceae
- The first antibody to contact invading microorganisms was
- a. IgG
- b. IgM ✅
- c. IgA
- d. IgD
- The light emitted by luminescent bacteria is mediated by the enzyme
- a. Coenzyme Q
- b. Luciferase
- c. Lactose dehydrogenase ✅
- d. Carboxylase reductase
- Pick out the vector used in the Human Genome Project
- a. Phagemid vector
- b. Yeast artificial chromosomes ✅
- c. Cosmid vectors
- d. Yeast episomal plasmids
- Salt and sugar preserve foods because they
- a. Make them acid
- b. Produce a hypotonic environment
- c. Deplete nutrients
- d. Produce a hypertonic environment ✅
- In a fluorescent microscope, the objective lens is made of
- a. Glass
- b. Quartz
- c. Polythene ✅
- d. None of these
- Fixation of atmospheric nitrogen is by means of
- a. Biological process
- b. Lightning
- c. Ultraviolet light
- d. All of the above ✅
