Alterations in Endocrine Function: Pathophysiology, Risks, and Nursing Care

What is the primary function of the endocrine system?

To store and secrete hormones that regulate homeostasis in the body.

Which gland coordinates the production and release of hormones?

Hypothalamus

What is the role of the pituitary gland?

It secretes hormones that regulate most of the other endocrine glands.

What causes hyperglycemia in patients taking steroids?

Steroids such as Prednisone can cause high blood sugars.

What are the two main functions of the pancreas?

Endocrine function (secretes insulin and glucagon) and exocrine function (secretes digestive enzymes).

What hormone is released to prevent hypoglycemia?

Glucagon

What is the key hormone that allows glucose absorption into cells?

Insulin

What happens to glucose after a meal?

It is broken down into simple sugars and carried to the brain and muscles for fuel.

How does insulin affect blood glucose levels?

It binds to receptors on liver, muscle, and fat cells, allowing glucose to enter the cells and decreasing circulating glucose levels.

What occurs when there is a lack of insulin?

Cells cannot uptake glucose, leading to increased blood glucose levels.

What is gluconeogenesis?

The process of generating glucose from non-carbohydrate sources.

What is glycogenolysis?

The breakdown of glycogen to glucose, primarily occurring in the liver and muscles.

List some modifiable risk factors for hyperglycemia.

Obesity, smoking, medications, chronic stress, and sedentary lifestyle.

What are some complications associated with hyperglycemia?

Neuropathy, hyperlipidemia, hypertension, and increased risk of diabetes.

What are the symptoms of hyperglycemia?

Polyuria, polydipsia, and polyphagia.

What does 'postprandial' mean?

After dinner or after eating.

What are the normal blood glucose levels?

Normal: 70 mg/dL, Pree: 100-125 mg/dL, Diabetes: Above 125 mg/dL.

What is the goal for Hemoglobin A1c (HbA1c) levels?

Less than 6%.

What is the nurse's role in managing hyperglycemia?

Teaching glucose monitoring, medication administration, and collaborating with the healthcare team.

What should a nurse monitor to assess hyperglycemia?

Blood glucose levels (random, fasting, postprandial) and manifestations of hyperglycemia.

What is the first step in the nursing process for hyperglycemia?

Recognize cues through assessment.

What is the importance of analyzing cues in hyperglycemia management?

To identify blood glucose levels and initiate prompt treatment.

What is a key focus in planning for hyperglycemia treatment?

Solutions to lower blood glucose levels, both immediately and over the long term.

What are some long-term complications of uncontrolled hyperglycemia?

Coronary artery disease, stroke, and retinopathy.

How can hyperglycemia impact overall health?

It can lead to increased thirst, frequent urination, and hunger.

What is the significance of ketones in hyperglycemia?

Ketones are produced as a backup energy source when glucose cannot enter cells.

What is the blood glucose level that defines hypoglycemia?

70 mg/dL or less

What are the key actions in the nursing process for managing hyperglycemia?

Medication administration and lifestyle changes.

What lifestyle changes can help manage hyperglycemia?

Diet and exercise.

What medications are commonly used to treat hyperglycemia?

Oral medications and insulin.

What triggers the sympathetic nervous system during hypoglycemia?

Blood glucose levels dropping to 70 mg/dL or less.

What hormones are released by the adrenal glands during hypoglycemia?

Epinephrine and norepinephrine.

What role does glucagon play in hypoglycemia?

It is released by the pancreas to increase blood glucose levels.

What are some risk factors for hypoglycemia?

Diabetes, changes in schedule, increased exercise, and fasting.

Which medications can increase the risk of hypoglycemia?

Insulin, sulfonylureas, and beta-blockers.

What mnemonic can help remember the clinical presentation of hypoglycemia?

HE'S TIRED: Headache, Sweating, Tachycardia, Irritability, Restlessness, Excessive Hunger, Dizziness.

What are common laboratory tests for diagnosing hypoglycemia?

Random blood glucose, fasting blood glucose, and HbA1c.

What is the initial treatment for hypoglycemia?

15 to 20 grams of fast-acting carbohydrate by mouth.

What are some examples of fast-acting carbohydrates for hypoglycemia?

4 ounces of non-diet fruit juice, 4 glucose tablets, or 1 tablespoon of sugar.

What is the role of the nurse after administering insulin?

Ensure the patient eats to prevent hypoglycemia.

What complications can arise from frequent hypoglycemia?

Hypoglycemia unawareness, falls, accidents, and increased risk of heart attack.

What are the long-term impacts of Type 1 Diabetes on overall health?

Lower life expectancy, unstable blood glucose levels, and increased risk of anxiety and depression.

What are the classic symptoms of hyperglycemia?

Polyuria, polydipsia, polyphagia, and unintentional weight loss.

What is the pathophysiology of Type 1 Diabetes?

It is an autoimmune disease that destroys beta cells in the pancreas, leading to loss of insulin production.

What are some complications associated with Type 1 Diabetes?

Diabetic neuropathy, cataracts, glaucoma, and diabetic nephropathy.

What should be monitored to prevent complications of severe hypoglycemia?

Blood glucose levels and the patient's ability to recognize hypoglycemia.

What is the importance of collaboration with an endocrinologist in managing diabetes?

To optimize treatment and management strategies for the patient.

What can frequent hypoglycemia lead to in older adults?

Increased risk of falls, injuries, and cognitive decline.

What is the recommended approach to medication administration in cases of hypoglycemia?

Go from least invasive to most invasive.

What is the significance of the term 'hypoglycemia unawareness'?

It refers to the inability to recognize the symptoms of hypoglycemia, increasing risk of severe episodes.

What dietary considerations are important for patients with diabetes?

Monitoring carbohydrate intake and ensuring regular meals to prevent hypoglycemia.

What is the non-fasting blood glucose level indicative of Type 1 Diabetes?

200 mg/dL or higher

What fasting blood glucose level indicates Type 1 Diabetes?

Greater than or equal to 126 mg/dL

What is the HbA1c level that indicates Type 1 Diabetes?

Greater than or equal to 7%

What are the key laboratory findings in Diabetic Ketoacidosis (DKA)?

Blood glucose greater than 250 mg/dL, elevated blood beta-hydroxybutyrate, serum ketones present, blood gas pH less than 7.3, HCO³ less than or equal to 15 mEq/L, urinalysis positive for glucose and ketones.

What is the primary goal of nursing care for Type 1 Diabetes?

To manage the disease and prevent complications.

What are some key components of client education for Type 1 Diabetes?

Monitoring blood glucose levels, self-administration of insulin, recognition and treatment of hypoglycemia and hyperglycemia, dietary recommendations, screening for complications, daily foot care.

What is the first step in the nursing process for Type 1 Diabetes?

Recognize cues through assessment.

What should be assessed in a patient with Type 1 Diabetes?

Glycemic control, complications, and manifestations of DKA.

What is the importance of C-peptide levels in Type 1 Diabetes?

C-peptide levels will be decreased due to lack of insulin production.

What are the common risk factors for Type 2 Diabetes?

Age, genetics, obesity, sedentary lifestyle, smoking, hypertension.

What is the pathophysiology of Type 2 Diabetes?

The pancreas may produce some insulin, but not enough to maintain blood glucose levels, and cell receptors become insulin resistant.

What lab results confirm a diagnosis of Type 2 Diabetes?

Fasting blood glucose greater than or equal to 126 mg/dL, 2-hour post-prandial blood glucose greater than or equal to 200 mg/dL, random blood glucose greater than or equal to 200 mg/dL, HbA1c greater than or equal to 6.5%.

What are the common complications associated with Type 2 Diabetes?

Stroke, heart attack, peripheral artery disease, diabetic retinopathy, cataracts, glaucoma, diabetic foot, diabetic nephropathy, peripheral neuropathy.

What is the role of the nurse in managing Type 2 Diabetes?

Stabilize blood glucose levels, prevent disease progression, support lifestyle changes, review lab results, monitor vital signs, administer medications, educate clients.

What are the signs of hypoglycemia?

Shakiness, sweating, confusion, irritability, dizziness, hunger.

What is the recommended action for a patient with high blood glucose before exercise?

Check and monitor blood glucose levels.

What is the significance of HbA1c monitoring in diabetes management?

It provides an average blood glucose level over the past 2-3 months.

What are the common symptoms of Type 2 Diabetes?

Fatigue, visual changes, skin changes, frequent infections, gangrene, dry skin, polyuria, polydipsia, weight change.

What is the nursing intervention for managing diabetic foot care?

Daily foot care and inspection.

What is the importance of proper nutrition in diabetes management?

It helps maintain blood glucose levels and prevent complications.

What are the different types of insulin based on their onset and duration?

Rapid, short, intermediate, and long-acting insulins.

What should be monitored in patients receiving insulin therapy?

Blood glucose levels, signs of hypoglycemia, and proper administration techniques.

What is the role of exercise in diabetes management?

It helps improve insulin sensitivity and control blood glucose levels.

What is the recommended storage for insulin?

Insulin should be stored in the refrigerator for prolonged stability.

What is the significance of patient education in diabetes care?

It empowers patients to manage their condition and recognize complications.

What are the main categories of diabetes medications?

Oral medications, injectable medications, emergency glucose-elevating agents, lifestyle modifications.

What is the first-line treatment for Type 2 Diabetes?

Nutritional changes, exercise, weight loss, strategies to improve glycemic control, and medication.

What is Metformin and how does it work?

Metformin is an oral hypoglycemic medication that lowers the amount of glucose the liver makes and the amount absorbed from food.

What are common adverse effects of Metformin?

Indigestion, bloating, abdominal pain, constipation, headache, and metallic taste.

In which conditions is Metformin contraindicated?

Severe kidney impairment, metabolic acidosis, and known hypersensitivity to metformin.

What is the mechanism of action of Sulfonylureas?

They stimulate the pancreas to produce more insulin and slow down the digestive system to absorb sugars more slowly.

Name a medication that is a Sulfonylurea.

Glipizide.

What are Meglitinides and their mechanism of action?

Meglitinides, like Repaglinide, stimulate insulin release from the pancreas to control blood glucose.

What are Alpha-glucosidase inhibitors and their effect?

They block glucose absorption in the gut, slowing carbohydrate absorption and digestion.

What is Acarbose used for?

To lower blood glucose in Type 2 diabetics.

What are common side effects of Alpha-glucosidase inhibitors?

GI effects, anemia, hepatotoxicity, and impaired breakdown of sucrose.

What do Dipeptidyl peptidase-IV (DPP-4) inhibitors do?

They promote insulin secretion and decrease glucagon secretion.

Name a DPP-4 inhibitor.

Sitagliptin.

What is the mechanism of action of Bile acid sequestrants?

They lower LDL cholesterol by binding to bile acids in the stomach for excretion.

What is Canagliflozin and its mechanism of action?

A sodium-glucose cotransporter 2 inhibitor that lowers blood glucose by increasing glucose excretion in urine.

What are the contraindications for Canagliflozin?

Renal failure and known sensitivity to canagliflozin.

What are the common side effects of Canagliflozin?

Genital fungal infections, increased urine output, thirst, urinary tract infections, constipation, vulvovaginal itching, and nausea.

What is the onset, peak, and duration time for rapid-acting insulin?

15-30 minutes.

0.5 - 3 hrs

3-5 hrs

What is the onset, peak, and duration time for short-acting insulin?

0.5 - 1 hr

2-4 hrs

4-12 hrs

What is the onset, peak, and duration time for intermediate-acting insulin?

1-2 hrs

4-14 hrs

14-24 hrs

What is the onset, peak, and duration time for Long-acting insulin?

2-4 hrs

Minimal

Up to 24 hrs

What is the onset, peak, and duration time for Ultra long-acting insulin?

More than 24 hrs

Rapid Acting Insulins?

Aspart, Lispro, glusine, inhaled

Short Acting Insulins?

Regular insulin (U-100 or U-500)