Question

please, write how you come up with the answer? thank you!

12. The nurse knows that the ratio of Immature to Mature neutrophils (I/T Ratio) is important to know in order to understand how the baby is responding to a bacterial infection. The CBC information on a five-hour-old infant with respiratory distress and risk factors for infection are as follows: 16,000 (15 X 10" 34% 16% Total White Blood Cell Count (WBC) Segmented neutrophils (segs) Band neutrophils (bands) Metamyelocytes (metas) Lymphocytes Basophils Eosinophils 41% 1% a. What percent of the neutrophils are immature? (Add the percent of bands and metas.) b. What percent of the total WBC (immature AND mature) are the neutrophils? (Add the % of segs, bands, and metas.) c. Express the 1/T ratio as a fraction as immature total neutrophils: d. Express the fraction as a decimal. (Round the final answer to one decimal place.) e. If the resulting decimal in #21 is 0.2 or greater, then the "index of suspicion of infection is increased. If the IT ratio is above 0.8, this is correlated with a higher risk of death from sepsis. Does this baby's value indicate an increased index of suspicion" for infection?

Answer 1

Before maturation to poly lobulated neutrophil, myelocytes and meta myelocytes are the precursor stages. Band form is also the form of neutro which comes when in urgent and quick preparation of neutrophil needed in body say infection when bone marrow has to produce them in numbers much greater than normal, structure of nucleus become straightened like a band or ribbon instead of lobulated(neutrophil fight infection) when released in peripheral circulation.So in sepsis we frequently found band form

So 20% are immature neutrophil

So 54% is total neutro

I/T= 20 in 100 means in 16000 it will be 20x16000÷100=3200

Similarly54 %in 160000 =54x16000÷100=3780

3200÷3780=0.8465

Rounding to 0.8(one decimal place)

Now as it is not greater than 0.8 as is told in the clue therefore . suspicion is present for infection .

Segmented are mature neutrophil