A nurse is preparing to administer 4,000 units of heparin subcutaneously to a client who has deep-vein thrombosis. Available is heparin 10,000 units/mL. How many mL of heparin should the nurse administer?

(Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

Choice A rationale:

Testing negative for HIV does not mean that the client is taking the antibiotics as prescribed. HIV is a virus that weakens the immune system and makes people more susceptible to tuberculosis, but it is not related to the medication regimen for tuberculosis.

Choice B rationale:

having a positive purified protein derivative test does not mean that the client is taking the antibiotics as prescribed. A purified protein derivative test is a skin test that checks for exposure to tuberculosis bacteria, but it does not measure the effectiveness of the medication regimen. A positive test means that the client has been exposed to tuberculosis bacteria at some point in their life, but it does not mean that they have an active infection or that they are taking the antibiotics as prescribed.

Choice C rationale:

The client has a negative sputum culture. A sputum culture is a test that checks for the presence of tuberculosis bacteria in the mucus that is coughed up from the lungs. A negative sputum culture means that the bacteria are no longer detectable and that the medication regimen is effective. A positive sputum culture means that the bacteria are still present and that the medication regimen may need to be adjusted.

Choice D rationale:

Having normal liver function test results does not mean that the client is taking the antibiotics as prescribed. Liver function tests are blood tests that check for damage to the liver caused by medications or other factors. Isoniazid and rifampin can cause liver damage, so the nurse should monitor the client's liver function tests regularly to prevent or detect any problems. However, having normal liver function test results does not mean that the client is taking the antibiotics as prescribed or that the medication regimen is effective.

Choice A rationale:

The first step is to remove the medication from the dispensing system. This ensures that the nurse has the right medication and dose for the client. The nurse should also check the label of the medication against the medication administration record (MAR) at this point. Choice B rationale:

The second step is to compare the client's wristband to the MAR. This verifies the client's identity and prevents medication errors. The nurse should use two identifiers, such as name and date of birth, to confirm the client's identity.

Choice C rationale:

The third step is to open the medication package. This prepares the medication for administration and prevents contamination. The nurse should also check the expiration date of the medication before opening it.

Choice D rationale:

The fourth step is to document administration of the medication. This completes the medication administration process and provides a record of the client's care. The nurse should document the medication name, dose, route, time, and any relevant observations or outcomes.