A client is to receive insulin lispro at 0730. Prior to administering the medication, the nurse reviews the medical records for past medical history and obtains the client's fingerstick blood glucose reading. What phase of the nursing process does this represent?

A) Evaluation: Evaluation is the phase where the nurse assesses whether the goals or outcomes of the care plan have been met. It involves determining if the interventions provided were effective in achieving the desired outcomes. In this scenario, the nurse is still
gathering information before the action is taken, so evaluation is not the correct phase.

B) Planning: Planning is the phase in the nursing process where the nurse develops a care plan, which includes setting goals and determining interventions based on the client's needs. Although reviewing the medical record and blood glucose level is important for planning the administration of insulin, this is more about gathering data rather than forming a plan of care.

C) Implementation: Implementation refers to the actual delivery of the nursing interventions or actions. In this case, administering the insulin would be part of the implementation phase, but reviewing the medical history and obtaining a fingerstick blood glucose reading are steps taken before implementing the medication.

D) Assessment: The nurse is collecting pertinent information about the client’s condition, including reviewing the medical record and obtaining the blood glucose level. Assessment is the first step in the nursing process and involves gathering information to help guide clinical decisions.

E) Diagnosis: Diagnosis is the phase in which the nurse analyzes the assessment data to identify the client’s health problems or potential risks. While the nurse is collecting data, the diagnosis comes after the assessment phase, when the nurse has enough information to make a clinical judgment about the client's health status.

Here's the process for calculating the drug concentration after multiple half-lives:

First half-life: After 1 half-life, 50% of the original dose remains in the body.

200 mg x 0.50 = 100 mg remains after 1 half-life.

Second half-life: After 2 half-lives, 50% of the remaining drug will be eliminated.

100 mg x 0.50 = 50 mg remains after 2 half-lives.

Third half-life: After 3 half-lives, 50% of the remaining drug will be eliminated again.

50 mg x 0.50 = 25 mg remains after 3 half-lives.

Fourth half-life: After 4 half-lives, 50% of the remaining drug will be eliminated once more.

25 mg x 0.50 = 12.5 mg remains after 4 half-lives.

Now, we need to sum up the amount of drug remaining in the body at each half-life:

After 4 half-lives, there are 12.5 mg left from the original dose.

Total drug in the body after 4 half-lives = 200 mg - 12.5 mg = 375 mg.