Diabetes: Types of Insulin

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Questions and Answers

A patient with type 1 diabetes is prescribed a long-acting insulin. How should the nurse instruct the patient to store the insulin?

  • Adjust the dose based on pre-meal blood glucose readings only.
  • Administer the insulin at the same time each day and avoid mixing it with other insulins. (correct)
  • Administer half of the prescribed dose in the morning and the other half in the evening for better control.
  • Mix the long-acting insulin with a short-acting insulin in the same syringe for convenience.

A patient is admitted with DKA and a critically high blood glucose level. After initial fluid resuscitation, which type of insulin administration is MOST appropriate for the nurse to initiate?

  • Intramuscular injections of rapid-acting insulin before meals
  • Subcutaneous injections of long-acting insulin every morning
  • Subcutaneous injections of intermediate-acting insulin twice daily
  • Intravenous infusion of regular insulin (correct)

A patient taking NPH insulin reports experiencing hypoglycemia in the mid-afternoon. What is the MOST likely reason for this occurrence?

  • The patient skipped lunch or did not eat enough carbohydrates. (correct)
  • The patient administered the NPH insulin dose too early in the morning.
  • The patient received an excessive dose of rapid-acting insulin.
  • The patient engaged in unplanned physical activity.

A patient with diabetes is prescribed insulin glargine (Lantus). Which statement indicates that the patient has a correct understanding of this medication?

<p>&quot;I will administer this insulin at the same time each day, and I won't mix it with any other insulins.&quot; (D)</p> Signup and view all the answers

A client with Type 2 diabetes is prescribed metformin to help control blood sugar. The patient is scheduled for a CT scan with contrast. Which action should the nurse take?

<p>Hold the metformin for 48 hours after the CT scan, and check with the provider for instructions. (C)</p> Signup and view all the answers

When educating a patient on sick day rules, which instruction is MOST important for preventing complications?

<p>Monitor blood glucose levels more frequently, and continue taking insulin or oral medications. (B)</p> Signup and view all the answers

A nurse is reviewing a patient's medication list and notices the patient is prescribed both a beta-blocker and insulin. What is the primary concern with this combination?

<p>Beta-blockers may mask the symptoms of hypoglycemia, making it difficult to recognize and treat. (C)</p> Signup and view all the answers

A patient with diabetes develops peripheral neuropathy. What is the MOST important teaching point regarding foot care to prevent complications?

<p>Inspect feet daily for cuts, blisters, or redness, and wear properly fitting shoes. (D)</p> Signup and view all the answers

A nurse is caring for a patient who is receiving both insulin and potassium supplementation. What pathophysiological principle explains the rationale for this concurrent treatment?

<p>Insulin promotes the intracellular uptake of potassium, which can lead to hypokalemia. (C)</p> Signup and view all the answers

A patient with a history of diabetic ketoacidosis (DKA) is admitted with nausea, vomiting, and confusion. Initial lab results show a blood glucose of 580 mg/dL, elevated ketones, and a pH of 7.25. In addition to IV fluids and insulin, what electrolyte is MOST critical to monitor and address during the initial phase of treatment?

<p>Potassium (D)</p> Signup and view all the answers

A patient who has been newly diagnosed with Type 1 diabetes asks why they need insulin injections instead of oral medication. What rationale should the nurse provide to the patient?

<p>Oral medications stimulate the pancreas to produce insulin, but in Type 1 diabetes, the pancreas does not produce insulin. (B)</p> Signup and view all the answers

A patient with diabetes is prescribed both insulin and an oral hypoglycemic agent. Which patient statement indicates a need for further teaching?

<p>&quot;I should administer the oral medication even if I skip a meal.&quot; (B)</p> Signup and view all the answers

A patient with a one-year history of diabetes has a consistently elevated fasting blood glucose level (over 200 mg/dL) despite adherence to diet and exercise. The patient is prescribed insulin in addition to their oral medications. What is the BEST explanation for this course of treatment?

<p>The patient's pancreas is no longer producing enough insulin to manage blood glucose levels effectively. (A)</p> Signup and view all the answers

The nurse is teaching a client how to mix regular insulin and NPH insulin in the same syringe. Which instruction is MOST important?

<p>Inject air into the NPH vial first, then the regular insulin, and draw up the regular insulin first, then the NPH insulin. (D)</p> Signup and view all the answers

A patient experiences the Somogyi effect. How should the nurse explain this phenomenon to the patient?

<p>It is a pattern of high blood glucose in the morning due to the release of hormones after an episode of nighttime hypoglycemia. (D)</p> Signup and view all the answers

A patient with diabetes is prescribed a new medication that is known to cause fluid retention. How should the nurse modify the patient’s care plan to address the potential impact of this side effect?

<p>Monitor the patient's weight, blood pressure, and edema, and assess for signs of heart failure. (D)</p> Signup and view all the answers

A patient with Type 2 diabetes and a history of cardiovascular disease is being considered for a new antidiabetic medication. Which medication class would be MOST concerning due to potential adverse cardiovascular effects?

<p>Thiazolidinediones (Pioglitazone) (A)</p> Signup and view all the answers

A nurse is caring for a patient with diabetic gastroparesis. Which intervention is MOST appropriate for managing this condition?

<p>Providing small, frequent meals and monitoring blood glucose levels closely. (A)</p> Signup and view all the answers

A patient who has both diabetes and chronic kidney disease is prescribed insulin. What modification to the insulin regimen should a nurse anticipate?

<p>Decreasing the insulin dosage due to prolonged insulin half-life and reducing the risk of hypoglycemia. (B)</p> Signup and view all the answers

A patient receives both insulin lispro (Humalog) and insulin glargine (lantus) each morning. What intervention should the nurse implement?

<p>Ensure that the patient eats a meal within 15 minutes of lispro injection. (B)</p> Signup and view all the answers

Flashcards

Rapid-Acting Insulin

Insulin lispro, aspart, and glulisine, which start working in 10-15 minutes, peak in 1-2 hours, and last for 3-5 hours.

Short-Acting Insulin

Regular insulin (Humulin R, Novolin R) that begins in 30-60 minutes, peaks in 2-4 hours, and lasts for 5-8 hours. Administered IV or Subcutaneously.

Intermediate-Acting Insulin

NPH insulin (Humulin N, Novolin N) starts in 1-2 hours, peaks in 4-12 hours, and lasts for 12-18 hours. It appears cloudy.

Long-Acting Insulin

Insulin glargine and detemir provides a minimal peak and lasts around 24 hours. Never mix this insulin with others.

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Type 1 Diabetes (T1DM)

Autoimmune destruction of beta-cells in the pancreas, leading to insulin deficiency. Requires lifelong insulin therapy.

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Type 2 Diabetes (T2DM)

Cells become resistant to insulin, often linked to obesity, sedentary lifestyle, and family history. Treated with lifestyle changes, oral medications, or insulin.

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Gestational Diabetes (GDM)

Insulin resistance that occurs during pregnancy due to hormonal changes. Managed with diet, exercise, and sometimes insulin.

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Diabetes Assessment

Monitoring blood glucose levels, looking for symptoms, and checking if the patient is following the treatment plan.

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Diabetes Medication Intervention

Teaching the correct way to use medications and what side effects to watch out for.

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Diabetes Nutrition Intervention

Carb counting and making sure to eat a balanced diet to help manage blood sugar levels.

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Diabetes Exercise Intervention

Encouraging the patient to be active and keep track of their blood sugar levels.

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Hypoglycemia Treatment

Treat with 15g of carbs and recheck glucose in 15 mins.

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DKA/HHS Interventions

Closely watch hydration, give insulin, and provide fluids as prescribed.

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Diabetes Education

Checking feet every day, knowing the rules for taking insulin on sick days, and understanding the warning signs of complications.

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Diabetes Patient Teaching

Checking feet daily, adhering to sick day insulin guidelines, and recognizing warning signs.

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Diabetes Complications

Possible complications include eye, kidney, nerve, and cardiovascular diseases.

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Study Notes

Types of Insulin

  • Rapid-acting insulin examples include insulin lispro (Humalog), insulin aspart (NovoLog), and insulin glulisine (Apidra).
  • Rapid-acting insulin has an onset of 10-15 minutes, peaks in 1-2 hours, and lasts for 3-5 hours.
  • When taking rapid-acting insulin, take before meals, and monitor for hypoglycemia.
  • Short-acting insulin examples include regular insulin (Humulin R, Novolin R).
  • Short-acting insulin has an onset of 30-60 minutes, peaks in 2-4 hours, and lasts for 5-8 hours.
  • When taking short-acting insulin, administer intravenously or subcutaneously 30 minutes before meals.
  • Intermediate-acting insulin examples include NPH insulin (Humulin N, Novolin N).
  • Intermediate-acting insulin has an onset of 1-2 hours, peaks in 4-12 hours, and lasts for 12-18 hours.
  • NPH insulin is cloudy and should be rolled to mix, and is often taken twice daily (BID).
  • Long-acting insulin examples include insulin glargine (Lantus) and insulin detemir (Levemir).
  • Long-acting insulin has an onset of 1-2 hours, a minimal peak, and lasts for approximately 24 hours.
  • Do not mix long-acting insulin, and take it at the same time daily.

Types of Diabetes

  • Type 1 Diabetes (T1DM) is caused by autoimmune beta-cell destruction.
  • Type 1 Diabetes is treated with lifelong insulin, carbohydrate counting, and blood glucose monitoring.
  • Type 2 Diabetes (T2DM) is caused by insulin resistance and beta-cell dysfunction.
  • Risk factors for Type 2 Diabetes include obesity, sedentary lifestyle, and family history.
  • Type 2 Diabetes is treated through lifestyle changes, oral medications, and insulin as needed.
  • Gestational Diabetes (GDM) is caused by hormonal insulin resistance during pregnancy.
  • Gestational Diabetes is treated with diet, exercise, and insulin if needed.
  • Other specific types of diabetes include MODY, LADA, and diabetes caused by secondary factors like steroids or pancreatitis.

Nursing Care for Diabetes

  • Assess blood glucose levels, patient symptoms, and adherence to treatment plans.
  • Teach patients about proper medication use and side effects.
  • Teach patients about carbohydrate counting and balanced diet.
  • Encourage activity and monitor blood glucose levels.
  • Treat hypoglycemia with 15g of carbohydrates and recheck blood glucose in 15 minutes.
  • For DKA/HHS, monitor hydration and administer insulin/fluids.
  • Educate patients on monitoring, sick day rules, and foot care.
  • Instruct patients to inspect their feet daily, understand sick day insulin use, and recognize warning signs.
  • Complications of diabetes include eye, kidney, nerve, and cardiovascular diseases.

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