the chokes

Also found in: Dictionary, Thesaurus, Encyclopedia.


A clinical complex caused by rapid whole-body decompression, with acute intravascular “boiling” of nitrogen and resultant morbidity (and mortality) in scuba divers and high-altitude pilots or workers in high-pressure environments (e.g., caissons) in chronic decompression sickness.

Clinical findings
Headache, nausea, vomiting, vertigo, tinnitus, dyspnoea, tachypnoea, joint and abdominal pain; nitrogen gas in the brain causes air bubbles in meningeal vessels separating the blood “column”, convulsions, shock and possibly death.

the 'chokes'

Sudden onset of respiratory distress in caisson's disease, which is associated with pulmonary edema, hemorrhage, atelectasis, and emphysema; the 'chokes' may be due to an ↑ in platelet adhesion to gas bubbles that release vasoconstrictors, platelet factor 3, causing coagulopathy. See the Bends, Caisson's disease.
References in periodicals archive ?
I wasn't going to mention it, but there's an additional problem when it comes to deciphering the chokes of barrels not fitted with choke tubes.
Looking at the muzzle end of a Browning shotgun fitted with Invector Plus choke tubes, what chokes are designated by the following notches cut into the rim of the choke tube: 1; 11; 111; 1111; 1111?
Remembering that choke is determined and measured as the difference in diameter between the main bore and the tightest portion of the choke, the amount of constriction within the choke will vary depending upon the nominal diameter of the bore.