A nurse is caring for a client who has a magnesium level of 2.7 mEq/L. Which of the following interventions should the nurse plan to take?

- A. Incorrect. The lithotomy position is not appropriate for this procedure, as it can cause discomfort and embarrassment to the client. The nurse should place the client in a left lateral Sims' position with the right knee flexed for better access to the rectum and to reduce pressure on the abdominal organs.

- B. Incorrect. The nurse should avoid eliciting a vagal response, as it can cause bradycardia, hypotension, and syncope in some clients. The nurse should monitor the client's vital signs and stop the procedure if signs of vagal stimulation occur.

- C. Incorrect. Oral bisacodyl is a stimulant laxative that can cause abdominal cramping, diarrhea, and electrolyte imbalance. It is not indicated for fecal impaction, as it can worsen the condition by increasing the bulk and hardness of the stool. The nurse should administer an enema or a stool softener before attempting digital evacuation.

- D. Correct. The nurse should insert a lubricated gloved finger and advance along the rectal wall, breaking up the stool and removing it in small pieces. The nurse should use gentle pressure and avoid injuring the rectal mucosa. The nurse should also explain the procedure to the client and obtain informed consent before performing it.

Choice A rationale:

A random plasma glucose level of 176 mg/dL indicates high blood sugar at the time of the test. Random glucose levels are not ideal for assessing glycemic control as they can vary based on recent food intake and stressors.

Choice B rationale:

Triglyceride levels are not used to assess glycemic control. They measure the amount of triglycerides in the bloodstream and are related to lipid metabolism, not glucose control.

Choice C rationale:

HbA1c (glycated hemoglobin) is a long-term measure of blood glucose control. An HbA1c level of 6.8% indicates acceptable glycemic control in a person with diabetes. The normal range for HbA1c is typically less than 6.5%. This test reflects the average blood sugar level over the past 2-3 months, giving a better understanding of overall glucose control.

Choice D rationale:

Fasting blood glucose of 120 mg/dL is slightly elevated. While fasting blood glucose levels below 100 mg/dL are generally considered normal, levels between 100-125 mg/dL are considered prediabetic, and levels above 126 mg/dL on two separate occasions indicate diabetes. The result provided falls within the prediabetic range but does not indicate optimal glycemic control.