1 Visa - Digits two through six are the bank number, digits seven through 12 or seven through 15 are the account number and digit 13 or 16 is a check digit.  MasterCard - Digits two and three, two through four, two through five or two through six are the bank number (depending on whether digit two is a 1, 2, 3 or other). The digits after the bank number up through digit 15 are the account number, and digit 16 is a check digit.
AIDS is the acronym for acquired immunodeficiency syndrome. 1  It is the stage of HIV infection where a person's immune system is fully compromised, leaving the body open to a wide range of potentially deadly diseases known as opportunistic infections.
Answer: a) HIV is a retrovirus overtaking living cells to duplicate itself. Explanation: HIV is a retrovirus, a virus that overtakes the biosynthesis of living cells to duplicate itself. HIV invades a normal cell and uses that cell's biomechanisms to reproduce new HIV cells. The terms HIV and AIDS are not synonymous. HIV is the virus responsible for causing AIDS, but the person who is HIV positive does not automatically have AIDS. HIV is not curable, it is only treatable. The nurse is caring for a client undergoing testing for HIV.