A patient with diabetes is starting on insulin therapy. Which type of insulin will the nurse discuss using for mealtime coverage?
Lispro (Humalog)
NPH (Humulin N)
Detemir (Levemir)
Glargine (Lantus)
The Correct Answer is A
Choice A reason: Lispro (Humalog) is a type of insulin that is used for mealtime coverage. It is a rapid-acting insulin that starts to work within 15 minutes, peaks in about an hour, and lasts for 2 to 4 hours. It mimics the natural insulin response to food intake, and helps to lower the blood glucose level after meals. The nurse will discuss using lispro for mealtime coverage, and instruct the patient to inject it within 15 minutes before or after eating.
Choice B reason: NPH (Humulin N) is a type of insulin that is not used for mealtime coverage. It is an intermediate-acting insulin that starts to work within 2 to 4 hours, peaks in 4 to 12 hours, and lasts for 12 to 18 hours. It provides a steady background of insulin throughout the day, and helps to control the blood glucose level between meals and overnight. The nurse will discuss using NPH for basal coverage, and instruct the patient to inject it once or twice a day, usually in the morning and/or evening.
Choice C reason: Detemir (Levemir) is a type of insulin that is not used for mealtime coverage. It is a long-acting insulin that starts to work within 1 to 2 hours, has no peak, and lasts for up to 24 hours. It provides a constant level of insulin throughout the day, and helps to maintain the blood glucose level at a stable range. The nurse will discuss using detemir for basal coverage, and instruct the patient to inject it once or twice a day, depending on the individual needs.
Choice D reason: Glargine (Lantus) is a type of insulin that is not used for mealtime coverage. It is a long-acting insulin that starts to work within 1 to 2 hours, has no peak, and lasts for up to 24 hours. It provides a constant level of insulin throughout the day, and helps to maintain the blood glucose level at a stable range. The nurse will discuss using glargine for basal coverage, and instruct the patient to inject it once a day, usually at the same time every day.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: Metabolic acidosis is a condition where the blood pH is lower than normal, due to an excess of acids or a loss of bases in the body. Jo is most at risk of developing metabolic acidosis, because of the high blood glucose level. High blood glucose can cause diabetic ketoacidosis, a complication of Type 1 Diabetes, where the body breaks down fat for energy and produces ketones, which are acidic substances. Ketones can accumulate in the blood and lower the pH, causing symptoms such as nausea, vomiting, abdominal pain, fruity breath, and confusion.
Choice B reason: Metabolic alkalosis is a condition where the blood pH is higher than normal, due to an excess of bases or a loss of acids in the body. Jo is not likely to develop metabolic alkalosis, because of the high blood glucose level. Metabolic alkalosis can be caused by conditions such as vomiting, diuretic use, or excessive antacid intake, which can increase the bicarbonate level or decrease the chloride level in the blood. These conditions are not related to Jo's diabetes.
Choice C reason: Respiratory acidosis is a condition where the blood pH is lower than normal, due to an accumulation of carbon dioxide in the body. Jo is not prone to developing respiratory acidosis, because of the high blood glucose level. Respiratory acidosis can be caused by conditions that impair the lung function, such as asthma, chronic obstructive pulmonary disease (COPD), or pneumonia, which can reduce the ventilation and increase the carbon dioxide level in the blood. These conditions are not related to Jo's diabetes.
Choice D reason: Respiratory alkalosis is a condition where the blood pH is higher than normal, due to a loss of carbon dioxide in the body. Jo is not susceptible to developing respiratory alkalosis, because of the high blood glucose level. Respiratory alkalosis can be caused by conditions that increase the breathing rate, such as anxiety, fever, or hyperventilation, which can reduce the carbon dioxide level in the blood. These conditions are not related to Jo's diabetes.
Correct Answer is D
Explanation
Choice A reason: This statement is false. Glucose: 88 mg/dL is a normal blood sugar level and does not indicate any problem with fluid or electrolyte balance¹.
Choice B reason: This statement is false. WBCs: 4000 is slightly below the normal range, but not significantly low. It may indicate a mild infection or inflammation, but not a serious fluid or electrolyte imbalance².
Choice C reason: This statement is false. K+: 3.4 mEq/L is slightly below the normal range, but not dangerously low. It may indicate a mild potassium deficiency, which can cause muscle weakness, but not restlessness or agitation.
Choice D reason: This statement is true. Na+: 154 mEq/L is above the normal range and indicates hypernatremia, or high blood sodium level. This can cause dehydration, confusion, restlessness, agitation, and seizures. It is a medical emergency that requires immediate treatment. Continuous tube feedings can increase the risk of hypernatremia if the formula is too concentrated or the fluid intake is inadequate⁵.
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