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In statistical process control (SPC), the ¯ and R chart is a type of scheme, popularly known as control chart, used to monitor the mean and range of a normally distributed variables simultaneously, when samples are collected at regular intervals from a business or industrial process. [1]
r/r/w: rales, rhonchi, wheezes (lung sounds) RS cell: Reed–Sternberg cell: RSB: Right sternal border RSI: rapid sequence induction: RSV: respiratory syncytial virus: R/t: related to RT: radiotherapy respiratory therapy reverse transcriptase: RT-PCR: reverse transcriptase polymerase chain reaction RTA: renal tubular acidosis: RTC
This may also be called standard range. In contrast, optimal (health) range or therapeutic target is a reference range or limit that is based on concentrations or levels that are associated with optimal health or minimal risk of related complications and diseases. For most substances presented, the optimal levels are the ones normally found in ...
p.r.n., PRN pro re nata: as needed PRN is pertactin, a virulence factor of the bacterium that causes pertussis: pt. perstetur: continue pulv. pulvis: powder p.v., PV per vaginam: vaginally q quaque: every, per q.1 h, q.1° quaque 1 hora: every 1 hour (can replace 1 with other numbers) q4PM at 4:00 pm (can replace 4 with other numbers) mistaken ...
The standard definition of a reference range for a particular measurement is defined as the interval between which 95% of values of a reference population fall into, in such a way that 2.5% of the time a value will be less than the lower limit of this interval, and 2.5% of the time it will be larger than the upper limit of this interval, whatever the distribution of these values.
The positive predictive value (PPV), or precision, is defined as = + = where a "true positive" is the event that the test makes a positive prediction, and the subject has a positive result under the gold standard, and a "false positive" is the event that the test makes a positive prediction, and the subject has a negative result under the gold standard.
The definition of vital signs may also vary with the setting of the assessment. Emergency medical technicians (EMTs), in particular, are taught to measure the vital signs of respiration, pulse, skin, pupils , and blood pressure as "the 5 vital signs" in a non-hospital setting.
In oncology, polycythemia vera (PV) is an uncommon myeloproliferative neoplasm in which the bone marrow makes too many red blood cells. [1] The majority of cases [ 2 ] are caused by mutations in the JAK2 gene, most commonly resulting in a single amino acid change in its protein product from valine to phenylalanine at position 617.