Please give an detailed explanation on why you chose this answer: A nurse is establishing IV access in a patient when she accidentally sticks herself with the needle used to insert the catheter. She removes her gloves and pushes blood out of her finger, then washes her hands. She is embarrassed that the event occurred and decides not to report the needlestick to her manager or Employee Health. The patient is discharged the next day. Twelve weeks later, the same patient returns and is under the nurse’s care again. The patient is jaundiced and has hepatomegaly and dark urine. The physician orders laboratory work. The nurse reviews the results when they are posted to the patient’s chart. The nurse notices the following results: Bilirubin 35 mg/dL 0.1–1.2 mg/dL AST 33 U/L 10–40 U/L ALT 41 U/L 7–56 U/L ALP 87 U/L 45–115 U/L HBsAg Neg Neg IgM anti-HBc Neg Neg IgG anti-HBc Neg Neg Anti-HBs 12 mIU/L Neg 1. What do the laboratory results indicate?  A. The nurse contracted hepatitis B from her accident. B. The nurse has a chronic hepatitis B infection. C. The nurse has protective immunity to hepatitis B. She must have been vaccinated in the past.

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A nurse is establishing IV access in a patient when she accidentally sticks herself with the needle used to insert the catheter. She removes her gloves and pushes blood out of her finger, then washes her hands. She is embarrassed that the event occurred and decides not to report the needlestick to her manager or Employee Health. The patient is discharged the next day. Twelve weeks later, the same patient returns and is under the nurse’s care again. The patient is jaundiced and has hepatomegaly and dark urine. The physician orders laboratory work. The nurse reviews the results when they are posted to the patient’s chart. The nurse notices the following results:

Bilirubin

35 mg/dL

0.1–1.2 mg/dL

AST

33 U/L

10–40 U/L

ALT

41 U/L

7–56 U/L

ALP

87 U/L

45–115 U/L

HBsAg

Neg

Neg

IgM anti-HBc

Neg

Neg

IgG anti-HBc

Neg

Neg

Anti-HBs

12 mIU/L

Neg

1. What do the laboratory results indicate? 

A. The nurse contracted hepatitis B from her accident.

B. The nurse has a chronic hepatitis B infection.

C. The nurse has protective immunity to hepatitis B. She must have been vaccinated in the past.

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