AUBF- STRASINGER

100問 • 1年前

問題一覧

The presence of xanthochromia can be caused by all of the following except: A. Immature liver function B. RBC degradation C. A recent hemorrhage D. Elevated CSF protein

C. A recent hemorrhage

A web-like pellicle in a refrigerated CSF specimen indicates: A. Tubercular meningitis B. Multiple sclerosis C. Primary CNS malignancy D. Viral meningitis

A. Tubercular meningitis

Given the following information, calculate the CSF WBC count: cells counted, 80; dilution, 1:10; large Neubauer squares counted, 10. A. 8 B. 80 C. 800 D. 8000

C. 800

A CSF WBC count is diluted with: A. Distilled water B. Normal saline C. Acetic acid D. Hypotonic saline

C. Acetic acid

A total CSF cell count on a clear fluid should be: A. Reported as normal B. Not reported C. Diluted with normal saline D. Counted undiluted

D. Counted undiluted

The purpose of adding albumin to CSF before cytocentrifugation is to: A. Increase the cell yield B. Decrease the cellular distortion C. Improve the cellular staining D. Both A and B

D. Both A and B

The primary concern when pleocytosis of neutrophils and lymphocytes is found in the CSF is: A. Meningitis B. CNS malignancy C. Multiple sclerosis D. Hemorrhage

A. Meningitis

Neutrophils with pyknotic nuclei may be mistaken for: A. Lymphocytes B. Nucleated RBCs C. Malignant cells D. Spindle-shaped cells

B. Nucleated RBCs

The presence of which of the following cells is increased in a parasitic infection? A. Neutrophils B. Macrophages C. Eosinophils D. Lymphocytes

C. Eosinophils

Macrophages appear in the CSF after: A. Hemorrhage B. Repeated spinal taps C. Diagnostic procedures D. All of the above

D. All of the above

Nucleated RBCs are seen in the CSF as a result of: A. Elevated blood RBCs B. Treatment of anemia C. Severe hemorrhage D. Bone marrow contamination

D. Bone marrow contamination

After a CNS diagnostic procedure, which of the following might be seen in the CSF? A. Choroidal cells B. Ependymal cells C. Spindle-shaped cells D. All of the above

D. All of the above

Hemosiderin granules and hematoidin crystals are seen in: A. Lymphocytes B. Macrophages C. Ependymal cells D. Neutrophils

B. Macrophages

Myeloblasts are seen in the CSF: A. In bacterial infections B. In conjunction with CNS malignancy C. After cerebral hemorrhage D. As a complication of acute leukemia

D. As a complication of acute leukemia

Cells resembling large and small lymphocytes with cleaved nuclei represent: A. Lymphoma cells B. Choroid cells C. Melanoma cells D. Medulloblastoma cells

A. Lymphoma cells

The reference range for CSF protein is: A. 6 to 8 g/dL B. 15 to 45 g/dL C. 6 to 8 mg/dL D. 15 to 45 mg/dL

B. 15 to 45 g/dL

CSF can be differentiated from serum by the presence of: A. Albumin B. Globulin C. Prealbumin D. Tau transferrin

B. Globulin

In serum, the second most prevalent protein is IgG; in CSF, the second most prevalent protein is: A. Transferrin B. Prealbumin C. IgA D. Ceruloplasmin

B. Prealbumin

Elevated CSF protein values can be caused by all of the following except: A. Meningitis B. Multiple sclerosis C. Fluid leakage D. CNS malignancy

C. Fluid leakage

The integrity of the blood–brain barrier is measured using the: A. CSF/serum albumin index B. CSF/serum globulin ratio C. CSF albumin index D. CSF IgG index

A. CSF/serum albumin index

Given the following results, calculate the IgG index: CSF IgG, 50 mg/dL; serum IgG, 2 g/dL; CSF albumin, 70 mg/dL; serum albumin, 5 g/dL. A. 0.6 B. 6.0 C. 1.8 D. 2.8

C. 1.8

Given the following results, calculate the IgG index: CSF IgG, 50 mg/dL; serum IgG, 2 g/dL; CSF albumin, 70 mg/dL; serum albumin, 5 g/dL. A. 0.6 B. 6.0 C. 1.8 ans. D. 2.8 The CSF IgG index calculated in Study Question 27 indicates: A. Synthesis of IgG in the CNS B. Damage to the blood–brain barrier C. Cerebral hemorrhage D. Lymphoma infiltration

A. Synthesis of IgG in the CNS

The finding of oligoclonal bands in the CSF and not in the serum is seen with: A. Multiple myeloma B. CNS malignancy C. Multiple sclerosis D. Viral infections

C. Multiple sclerosis

A CSF glucose of 15 mg/dL, WBC count of 5000, 90% neutrophils, and protein of 80 mg/dL suggests: A. Fungal meningitis B. Viral meningitis C. Tubercular meningitis D. Bacterial meningitis

D. Bacterial meningitis

A patient with a blood glucose of 120 mg/dL would have a normal CSF glucose of: A. 20 mg/dL B. 60 mg/dL C. 80 mg/dL D. 120 mg/dL

B. 60 mg/dL

CSF lactate will be more consistently decreased in: A. Bacterial meningitis B. Viral meningitis C. Fungal meningitis D. Tubercular meningitis

A. Bacterial meningitis

Measurement of which of the following can be replaced by CSF glutamine analysis in children with Reye syndrome? A. Ammonia B. Lactate C. Glucose D. a -Ketoglutarate

A. Ammonia

Before performing a Gram stain on CSF, the specimen must be: A. Filtered B. Warmed to 37°C C. Centrifuged D. Mixed

C. Centrifuged

All of the following statements are true about cryptococcal meningitis except: A. An India ink preparation is positive B. A starburst pattern is seen on Gram stain C. The WBC count is over 2000 D. A confirmatory immunology test is available

C. The WBC count is over 2000

The test of choice to detect neurosyphilis is the: A. RPR B. VDRL C. FAB D. FTA-ABS

D. FTA-ABS

Maturation of spermatozoa takes place in the: A. Sertoli cells B. Seminiferous tubules C. Epididymis D. Seminal vesicles

C. Epididymis

Enzymes for the coagulation and liquefaction of semen are produced by the: A. Seminal vesicles B. Bulbourethral glands C. Ductus deferens D. Prostate gland

D. Prostate gland

The major component of seminal fluid is: A. Glucose B. Fructose C. Acid phosphatase D. Citric acid

B. Fructose

If the first portion of a semen specimen is not collected, the semen analysis will have which of the following? A. Decreased pH B. Increased viscosity C. Decreased sperm count D. Decreased sperm motility

C. Decreased sperm count

Failure of laboratory personnel to document the time a semen sample is collected primarily affects the interpretation of semen: A. Appearance B. Volume C. pH D. Viscosity

D. Viscosity

Liquefaction of a semen specimen should take place within: A. 1 hour B. 2 hours C. 3 hours D. 4 hours

A. 1 hour

A semen specimen delivered to the laboratory in a condom has a normal sperm count and markedly decreased sperm motility. This indicates: A. Decreased fructose B. Antispermicide in the condom C. Increased semen viscosity D. Increased semen alkalinity

B. Antispermicide in the condom

An increased semen pH may be caused by: A. Prostatic infection B. Decreased prostatic secretions C. Decreased bulbourethral gland secretions D. All of the above

D. All of the above

Proteolytic enzymes may be added to semen specimens to: A. Increase the viscosity B. Dilute the specimen C. Decrease the viscosity D. Neutralize the specimen

C. Decrease the viscosity

The normal sperm concentration is: A. Less than 20 million/m L B. More than 20 million/mL C. Less than 20 million/mL D. More than 20 million/m L

B. More than 20 million/mL

Given the following information, calculate the sperm concentration: dilution, 1:20; sperm counted in five RBC squares on each side of the hemocytometer, 80 and 86; volume, 3 mL. A. 80 million/mL B. 83 million/mL C. 86 million/mL D. 169 million/m L

B. 83 million/mL

Using the above information, calculate the sperm concentration when 80 sperm are counted in 1 WBC square and 86 sperm are counted in another WBC square. A. 83 million/mL B. 166 million per ejaculate C. 16.6 million/mL D. 50 million per ejaculate

C. 16.6 million/mL

The primary reason to dilute a semen specimen before performing a sperm concentration is to: A. Immobilize the sperm B. Facilitate the chamber count C. Decrease the viscosity D. Stain the sperm

A. Immobilize the sperm

When performing a sperm concentration, 60 sperm are counted in the RBC squares on one side of the hemocytometer and 90 sperm are counted in the RBC squares on the other side. The specimen is diluted 1:20. The: A. Specimen should be rediluted and counted B. Sperm count is 75 million/mL C. Sperm count is greater than 5 million/mL D. Sperm concentration is abnormal

A. Specimen should be rediluted and counted

Sperm motility evaluations are performed: A. Immediately after the specimen is collected B. Within 1 hour of collection C. After 3 hours of incubation D. At 6-hour intervals for 1 day

B. Within 1 hour of collection

The percentage of sperm showing average motility that is considered normal is: A. 25% B. 50% C. 60% D. 75%

B. 50%

The purpose of the acrosomal cap is to: A. Penetrate the ovum B. Protect the the nucleus C. Create energy for tail movement D. Protect the neckpiece

A. Penetrate the ovum

The sperm part containing a mitochondrial sheath is the: A. Head B. Neckpiece C. Midpiece D. Tail

C. Midpiece

All of the following are associated with sperm motility except the: A. Head B. Neckpiece C. Midpiece D. Tail

A. Head

The morphologic shape of a normal sperm head is: A. Round B. Tapered C. Oval D. Amorphous

C. Oval

Normal sperm morphology when using the WHO criteria is: A. >30% normal forms B. <30% normal forms C. >15% abnormal forms D. <15% normal forms

A. >30% normal forms

Additional parameters measured by Kruger’s strict morphology include all of the following except: A. Vitality B. Presence of vacuoles C. Acrosome size D. Tail length

A. Vitality

Round cells that are of concern and may be included in sperm counts and morphology analysis are: A. Leukocytes B. Spermatids C. RBCs D. Both A and B

D. Both A and B

If 5 round cells per 100 sperm are counted in a sperm morphology smear and the sperm concentration is 30 million, the concentration of round cells is: A. 150,000 B. 1.5 million C. 300,000 D. 15 million

B. 1.5 million

Following an abnormal sperm motility test with a normal sperm count, what additional test might be ordered? A. Fructose level B. Zinc level C. MAR test D. Eosin-nigrosin stain

D. Eosin-nigrosin stain

Follow-up testing for a low sperm concentration would include testing for: A. Antisperm antibodies B. Seminal fluid fructose C. Sperm vitality D. Prostatic acid phosphatase

B. Seminal fluid fructose

The immunobead test for antisperm antibodies: A. Detects the presence of male antibodies B. Determines the presence of IgG, IgM, and IgA antibodies C. Determines the location of antisperm antibodies D. All of the above

D. All of the above

Measurement of a -glucosidase is performed to detect a disorder of the: A. Seminiferous tubules B. Epididymis C. Prostate gland D. Bulbourethral glands

B. Epididymis

A specimen delivered to the laboratory with a request for prostatic acid phosphatase and glycoprotein p30 was collected to determine: A. Prostatic infection B. Presence of antisperm C. A possible rape D. Successful vasectomy

C. A possible rape

Following a negative postvasectomy wet preparation, the specimen should be: A. Centrifuged and reexamined B. Stained and reexamined C. Reported as no sperm seen D. Both A and B

A. Centrifuged and reexamined

Standardization of procedures and reference values for semen analysis is primarily provided by the: A. Manufacturers of instrumentation B. WHO C. Manufacturers of control samples D. Clinical Laboratory Improvement Amendments

B. WHO

The functions of synovial fluid include all of the following except: A. Lubrication for the joints B. Removal of cartilage debris C. Cushioning joints during jogging D. Providing nutrients for cartilage

B. Removal of cartilage debris

The primary function of synoviocytes is to: A. Provide nutrients for the joints B. Secrete hyaluronic acid C. Regulate glucose filtration D. Prevent crystal formation

A. Provide nutrients for the joints

Which of the following is not a frequently performed test on synovial fluid? A. Uric acid B. WBC count C. Crystal examination D. Gram stain

A. Uric acid

The procedure for collecting synovial fluid is called: A. Synovialcentesis B. Arthrocentesis C. Joint puncture D. Arteriocentesis

B. Arthrocentesis

Match the following disorders with their appropriate group: A. Noninflammatory B. Inflammatory C. Septic D. Hemorrhagic Gout

B. Inflammatory

Match the following disorders with their appropriate group: A. Noninflammatory B. Inflammatory C. Septic D. Hemorrhagic Neisseria gonorrhoeae infection

C. Septic

Match the following disorders with their appropriate group: A. Noninflammatory B. Inflammatory C. Septic D. Hemorrhagic Systemic lupus erythematosus

B. Inflammatory

Match the following disorders with their appropriate group: A. Noninflammatory B. Inflammatory C. Septic D. Hemorrhagic Osteoarthritis

A. Noninflammatory

Match the following disorders with their appropriate group: A. Noninflammatory B. Inflammatory C. Septic D. Hemorrhagic Hemophilia

D. Hemorrhagic

Match the following disorders with their appropriate group: A. Noninflammatory B. Inflammatory C. Septic D. Hemorrhagic Rheumatoid arthritis

B. Inflammatory

Match the following disorders with their appropriate group: A. Noninflammatory B. Inflammatory C. Septic D. Hemorrhagic Heparin overdose

D. Hemorrhagic

Normal synovial fluid resembles: A. Egg white B. Normal serum C. Dilute urine D. Lipemic serum

A. Egg white

Before testing, very viscous synovial fluid should be treated with: A. Normal saline B. Hyaluronidase C. Distilled water D. Hypotonic saline

B. Hyaluronidase

Addition of a cloudy, yellow synovial fluid to acetic acid produces a/an: A. Yellow-white precipitate B. Easily dispersed clot C. Solid clot D. Opalescent appearance

B. Easily dispersed clot

Which of the following could be the most significantly affected if a synovial fluid is refrigerated before testing? A. Glucose B. Crystal examination C. Mucin clot test D. Differential

B. Crystal examination

The highest WBC count can be expected to be seen with: A. Noninflammatory arthritis B. Inflammatory arthritis C. Septic arthritis D. Hemorrhagic arthritis

C. Septic arthritis

When diluting a synovial fluid WBC count, all of the following are acceptable except: A. Acetic acid B. Isotonic saline C. Hypotonic saline D. Saline with saponin

A. Acetic acid

The lowest percentage of neutrophils would be seen in: A. Noninflammatory arthritis B. Inflammatory arthritis C. Septic arthritis D. Hemorrhagic arthritis

A. Noninflammatory arthritis

All of the following are abnormal when seen in synovial fluid except: A. Neutrophages B. Ragocytes C. Synovial lining cells D. Lipid droplets

C. Synovial lining cells

Synovial fluid crystals that occur as a result of purine metabolism or chemotherapy for leukemia are: A. Monosodium urate B. Cholesterol C. Calcium pyrophosphate D. Apatite

A. Monosodium urate

Synovial fluid crystals associated with inflammation in dialysis patients are: A. Calcium pyrophosphate dihydrate B. Calcium oxalate C. Corticosteroid D. Monosodium urate

B. Calcium oxalate

Crystals associated with pseudogout are: A. Monosodium urate B. Calcium pyrophosphate dihydrate C. Apatite D. Corticosteroid

B. Calcium pyrophosphate dihydrate

Synovial fluid for crystal examination should be examined as a/an: A. Wet preparation B. Wright's stain C. Gram stain D. Acid-fast stain

A. Wet preparation

Crystals that have the ability to polarize light are: A. Corticosteroid B. Monosodium urate C. Calcium oxalate D. All of the above

D. All of the above

In an examination of synovial fluid under compensated polarized light, rhomboid-shaped crystals are observed. What color would these crystals be when aligned parallel to the slow vibration? A. White B. Yellow C. Blue D. Red

B. Yellow

If crystals shaped like needles are aligned perpendicular to the slow vibration of compensated polarized light, what color are they? NEGATIVE A. White B. Yellow C. Blue D. Red

C. Blue

Negative birefringence occurs under red- compensated polarized light when: A. Slow light is impeded more than fast light B. Slow light is less impeded than fast light C. Fast light runs against the molecular grain of the crystal D. Both B and C

C. Fast light runs against the molecular grain of the crystal

Synovial fluid cultures are often plated on chocolate agar to detect the presence of: A. Neisseria gonorrhoeae B. Staphylococcus agalactiae C. Streptococcus viridans D. Enterococcus faecalis

A. Neisseria gonorrhoeae

The most frequently performed chemical test on synovial fluid is: A. Total protein B. Uric acid C. Calcium D. Glucose

C. Calcium

Which of the following chemistry tests can be performed on synovial fluid to determine the severity of RA? A. Glucose B. Protein C. Lactate D. Uric acid

C. Lactate

Serologic tests on patients’ serum may be performed to detect antibodies causing arthritis for all of the following disorders except: A. Pseudogout B. Rheumatoid arthritis C. Systemic lupus erythematosus D. Lyme arthritis

A. Pseudogout

The primary purpose of serous fluid is to: A. Remove waste products B. Lower capillary pressure C. Lubricate serous membranes D. Nourish serous membranes

C. Lubricate serous membranes

The membrane that lines the wall of a cavity is the: A. Visceral B. Peritoneal C. Pleural D. Parietal

D. Parietal

During normal production of serous fluid, the slight excess of fluid is: A. Absorbed by the lymphatic system B. Absorbed through the visceral capillaries C. Stored in the mesothelial cells D. Metabolized by the mesothelial cells

A. Absorbed by the lymphatic system

Production of serous fluid is controlled by: A. Capillary oncotic pressure B. Capillary hydrostatic pressure C. Capillary permeability D. All of the above

D. All of the above

An increase in the amount of serous fluid is called a/an: A. Exudate B. Transudate C. Effusion D. Malignancy

C. Effusion

Pleural fluid is collected by: A. Pleurocentesis B. Paracentesis C. Pericentesis D. Thoracentesis

D. Thoracentesis

Place the appropriate letter in front of the following statements describing transudates and exudates. A. Transudate B. Exudate Caused by increased hydrostatic pressure

B. Exudate

100

Place the appropriate letter in front of the following statements describing transudates and exudates. A. Transudate B. Exudate Endocarditis related

B. Exudate

other names parasitology

Yves Laure Pimentel · 70問 · 2年前

other names parasitology