SPT, BAL, SWEAT, CSF Flashcards
A mixture of plasma, electrolytes, mucin and water
Tracheobronchial secretions
Acceptable sputum specimen
<10 SEC/LPF and >25 WBCs/LPF
Sputum is produced by
Tracheobronchial tree
Most preferred sample for routine analysis
First morning
Collection method for unconscious or debilitated patients
Tracheal aspiration
Yellow or gray PIN HEAD sized material and produces foul odor when crushed
Dittrich’s plugs
Color of sputum for old blood, pneumonia, gangrene
Anchovy sauce or rusty brown
Color of sputum of cancer patient
Olive green or grass green
Color of sputum with lobar pneumonia ( S. Pneumonia)
Rusty with pus
Color of sputum of patient with congestive heart failure
Rusty without pus
Color of sputum of patient with Klebsiella pneumoniae infection
Currant, jelly-like
Hard concretions in a bronchus (LUNG STONE)
Yellow white calcified TB structures/ foreign material
Pneumoliths or broncholiths
Coiled mucus strands and appear as fluff balls macroscopically
Curschmann spiral
Colorless hexagonal, double pyramid, often NEEDLE LIKE, arise from disintegrations of eosinophils
Charcot Leyden crystals
Seen in bronchial asthma
Charcot leyden crystals
creola bodies
Curschmanns spiral
Pigmented cell: hemosiderin-laden macrophage
Heart failure cells
Pigmented cells: angular black granules
Carbon-laden cells
Colorless globules occurring in a variety of sizes and bizarre formations
Myelin globules
It has no significance and MISTAKEN AS BLASTOMYCES
MYELIN GLOBULES
Clusters of columnar epithelial cells
Creola bodies
Bronchoalveolar lavage is an important disgnostic test for what parasite in immunocompromised patients
Pneumocystis jiroveci/carinii
A BAL stain that is best for delineating the cysts of pneumocystis jiroveci
Grocott’s methenamine silver stain
Most predominant cells seen in BAL
ALVEOLAR MACROPHAGE
Percentage of lymphocytes seen in BAL
1-15%
These cells are increased in BAL among cigarette smokers
Neutrophil
Specimen used to diagnose cystic fibrosis
Sweat
Pilocarpine + mild current = induce sweat production
Gibson and Cooke Pilocarpine iontophoresis
Sweat sodium and chloride values that is diagnostic for Cystic fibrosis
> 70 mEq/L
Sweat sodium and chloride values that is BORDERLINE for Cystic fibrosis
40 mEq/L
Most important single component of sputum viscosity
Sialic acid
Produces CSF by selective filtration at a rate of 20 mL//hour
Choroid plexus
Reabsorbs CSF
ARACHNOID VILLI/GRANULATIONS
Protects brain from chemicals and other substances circulating in the blood that can harm the brain tissue
Blood brain barrier
Up to ___ mL CSF can be collected using a manometer attached to a spinal needle
20 mL
Method of CSD collection
Lumbar tap
Location of collection of CSF in adults
Between L3-L4
Location of CSF collection in infants
Between L4-L5
CSF tube 1 is used for what section ; storage temp
Chemistry or serology ; freezer
CSF TUBE 2 IS FOR WHAT SECTION ; storage temp
MICROBIOLOGY ; room temp for 30 mins
Tube 3 is for what section
Hematology ; ref temp for fours
CSF TUBE 4 is for what section
microbiology or serology (best)
If 1 CSF tube 1 only what is the order for each section
Micro > hema > chemistry
Normal CSF volume in adults
90-150 mL
Normal CSF volume in infants
10-60 mL
Puncture of blood vessels
Traumatic tap
Bleeding within the brain case
Intracranial hemorrhage
Uneven distribution of blood on 3 tubes
Traumatic tap
Even distribution of blood on 3 tubes
Intracranial hemorrhage
Positive for clot formation
Traumatic tap