Search results
Results From The WOW.Com Content Network
An exception is for acid–base and blood gases, which are generally given for arterial blood. [citation needed] Still, the blood values are approximately equal between the arterial and venous sides for most substances, with the exception of acid–base, blood gases and drugs (used in therapeutic drug monitoring (TDM) assays). [6]
blood glucose level: BIB: brought in by BIBA: brought in by ambulance BID bid b.i.d. twice a day (from Latin bis in die) Bilat eq: bilaterally equal BiPAP: bilevel positive airway pressure: BIS: bispectral index: BiVAD: bilateral ventricular assist device (left and right) BK: bradykinin: BKA: below-the-knee amputation: b/l: bilateral BL ...
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 false positive rate (FPR) is the proportion of all negatives that still yield positive test outcomes, i.e., the conditional probability of a positive test result given an event that was not present. The false positive rate is equal to the significance level. The specificity of the test is equal to 1 minus the false positive rate.
In equation above, positive post-test probability is calculated using the likelihood ratio positive, and the negative post-test probability is calculated using the likelihood ratio negative. Odds are converted to probabilities as follows: [18]
For the figure that shows high sensitivity and low specificity, there are 3 FN and 8 FP. Using the fact that positive results = true positives (TP) + FP, we get TP = positive results - FP, or TP = 40 - 8 = 32. The number of sick people in the data set is equal to TP + FN, or 32 + 3 = 35. The sensitivity is therefore 32 / 35 = 91.4%.
Scientists claim to have found evidence of “negative time” after observing photons exiting a material before entering it. A team of quantum physicists from the University of Toronto in Canada ...
1. This is the Rh-positive blood cell. 2. This is the Rh-negative blood cell. 3. These are the antigens on the Rh-positive blood cell that make it positive. The antigens allow the positive blood cell to attach to specific antibodies. Rh phenotypes are readily identified through the presence or absence of the Rh surface antigens.