This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Which of the following is true regarding reference ranges? a. Should be derived from reference ... (Read 89 times)

ARLKQ

  • Hero Member
  • *****
  • Posts: 571
on: Jun 25, 2018
Which of the following is true regarding reference ranges?
 
  a. Should be derived from reference books
  b. Need to be determined only for adults
  c. Can be established by running the test procedure on 10 healthy people
  d. Are ranges of values for an analyte in normal healthy people

Question 2

A patient specimen is analyzed on an instrument known to be in control from previous assays performed on a calibrated instrument and gives a hemoglobin result of 13.2 g/dL.
 
  Two hours later it is evaluated on another instrument that is being evaluated for purchase by the laboratory. The result is 11.8 g/dL. This result, when compared with the first, is:
 
  a. Acceptable agreement
  b. Reportable
  c. Precise agreement
  d. Inaccurate


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

flexer1n1

  • Sr. Member
  • ****
  • Posts: 373
Reply #1 on: Jun 25, 2018
Answer to Question 1

ANS: D
Reference ranges should be determined by evaluating a group of perhaps as many as 120 normal healthy people for the same analyte. If the analyte differs in different groups, based on data such as age and sex, then it must be determined for each group if at all possible.

Answer to Question 2

ANS: D
This result is inaccurate compared with the first because it is significantly different. Precision is not known, because multiple results are needed to determine precision; in addition, precision must be determined using the same instrument, not between instruments. Because it is not accurate, it cannot be reported.


ARLKQ

  • Member
  • Posts: 571
Reply 2 on: Jun 25, 2018
Great answer, keep it coming :)

jamesnevil303

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

Did you know?

Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.

Did you know?

Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Did you know?

Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

Bacterial colonies, each derived from a single cell Bacterial colonies, each derived from a single c Bacterial colonies, each derived from a single cell Bacterial colonies, each derived from a single c
Human neural stem cells derived from hESCs, engineered to over-express Olig2 Human neural stem cells derived from hESCs, engineered to over-express Olig2
Comparison of the chemical structures of psilocybin and LSD. Psilocybin (left) is derived from a mu Comparison of the chemical structures of psilocybin and LSD. Psilocybin (left) is derived from a mu
Comparison of the chemical structures of psilocybin and LSD. Psilocybin (left) is derived from a mus Comparison of the chemical structures of psilocybin and LSD. Psilocybin (left) is derived from a mus
The chemical structure of mescaline, derived from the peyote cactus The chemical structure of mescaline, derived from the peyote cactus
The Physicians’ Desk Reference. The Physicians’ Desk Reference.
Video: Cleavage and Implantation Animation

For a complete list of videos, visit our video library