opening pressure


Also found in: Dictionary, Thesaurus, Medical, Legal.

opening pressure

[′ōp·ə·niŋ ‚presh·ər]
(mechanical engineering)
The static inlet pressure at which discharge is initiated.
References in periodicals archive ?
Cerebrospinal fluid protein and opening pressure in idiopathic intracranial hypertension (pseudotumor cerebri).
Every other day, lumbar punctures were performed and showed opening pressures as high as 49 cm[H.
The factors most associated with poor prognosis are: altered mental status, CSF opening pressure greater than 25 cm of water, cryptococcal antigen in CSF greater than 1: 512, culture positive for cryptococcus in organs other than the CNS, and absence of meningeal enhancement (6).
2 kW Speed 1500 rpm Static Injection Timing 23[degrees] bTDC (rated) Nozzle Opening Pressure 220 bar (rated) Coating Material Al- 20% SiC Table II: Properties of Radish Biodiesel and its Diesel Blend S.
Management of an initial episode of cryptococcal meningitis among HIV-infected ART-naive adults Diagnosis * Confirm the diagnosis by LP and submit cerebrospinal fluid for a rapid test (either cryptococcal antigen or India ink test) and fungal culture Raised intracranial * Measure the opening pressure at the time of pressure diagnostic LP (in the left lateral supine position) * If the opening pressure is >25 cm [H.
The data of interest were: measurements of CSF opening pressure at the first LP; whether AMB/fluconazole therapy was used; whether prehydration was administered before the receipt of AMB; and whether monitoring of renal function (rising urea and creatinine only) and ICP were done according to the recommendations of the SAHIVSoc 2007 CM guidelines.
Cerebral spinal fluid (CSF) analysis showed a high opening pressure (30 cm H [sub]2 O), increased red (3460/[micro]L) and white (40/[micro]L) blood cells, and absence of antigens of herpesvirus, enterovirus, influenza virus, streptococcus, meningococcus, pneumococcus, and Haemophilus influenzae type B.
12) It should be emphasized that these signs might suggest the diagnosis of IIH, but that ultimately the diagnosis is established by lumbar puncture with measurement of opening pressure.
If the brain MRI is normal but typical symptoms are present, a confirmatory diagnosis can be based on low CSF opening pressure (<6 cm[H.
4) This may be misleading, as at LP the opening pressure may be significantly elevated and the patient experiences relief of symptoms on drainage of CSF.