Exam 30: Morphologic Analysis of Body Fluids in the Hematology Laboratory

An exudative effusion can cause many different pathologic processes,such as bacterial infections,viral infections,neoplasms,and collagen vascular diseases.What are the typical laboratory results of an exudate?

What morphological characteristics of the following cell types will help the technologist differentiate them? a.Mesothelial cells b.Adenocarcinoma c.Leukemic blasts d.Small-cell carcinoma

What is the significance of micro-organisms present in the cytospin?

One of the definitive signs of hemorrhage in the CNS is:

A patient with rheumatoid arthritis has fluid collected from his knee.The fluid has crystals that have a notched-plate shape.They are also birefringent.These crystals are most likely:

A specimen labeled "ascites" is sent to the laboratory.What type of procedure was used to obtain this fluid?

Which of the following is responsible for producing cerebrospinal fluid?

Morphologic evaluation of body fluids prepared by using the cytocentrifuge is an excellent method of concentrating cells for microscopic review.When the pleural fluid is cytocentrifuged for staining,what type of normal cells would one expect to see?

When evaluating a CSF for a hemorrhage or a traumatic tap,what laboratory results would be expected if it were a traumatic tap?

A technologist is performing a body fluid analysis on a CSF specimen recently received in the laboratory.Four CSF tubes were sent to the body fluids bench.The tech notices that all four specimens seem moderately blood tinged equally.Moderate xanthochromia was also noted.The tech performs the cytospin differential and notices many macrophages with black crystals and round,pink intracellular bodies.What is the most likely reason for these findings?

Necrotic PMNs in a cytospin can be easily mistaken for which of the following?

Which procedure is used to collect the pleural fluid from the pleural cavity?

The most pathogenic yeasts are found in the CSF rather than in the other types of fluids.Which yeast is described as small and often intracellular with a distinct nonstaining cell wall?

How would the technologist differentiate between a traumatic specimen collection tap and a cerebral hemorrhage? Provide at least three macroscopic and three microscopic findings.

Interpret the following results: -Specimen: cerebrospinal fluid (CSF) -Tubes sent: 1-4 -Tube 1 RBC count: 30,000/mcL -Tube 2 RBC count: 1500/mcL -Tube 3 RBC count: 200/mcL -Tube 4 RBC count: 4/mcL -Gross examination: -Tube 1: moderate hemolysis,clear -Tube 2: slight hemolysis,clear -Tube 3: no hemolysis,clear -Tube 4: no hemolysis,clear -Xanthochromia: absent in all four tubes -Microscopic findings: -Many intact RBCs -0-5 neutrophils -0-5 lymphocytes -0-5 MNCs What do these data most likely represent?

Joint fluid from a patient with knee pain revealed many monosodium urate crystals.These crystals are associated with:

Interpret the following results: -Specimen: pleural effusion on a 45-year-old lung cancer patient: -Specific gravity = 1.025 -Total protein = 4.5 g/dl -F:Se protein = 0.9 -Fluid LD/serum LD = 0.8 -Total WBC count = 2,205/mcL (μL) What is the classification of this fluid?

What type of fluid is collected from the spinal tap or lumbar puncture procedure?

Examination of joint fluid on a 60-year-old patient with right knee pain reveals many intracellular needlelike crystals that polarize yellow to blue.What is the most likely identification of the crystal?