Ch 51: Assessment and Management of Patients With Diabetes Mellitus

A client is evaluated for type 1 diabetes. Which client comment correlates best with this disorder?

"I'm thirsty all the time. I just can't get enough to drink." ----- Classic signs and symptoms of diabetes mellitus are polydipsia (excessive thirst), polyuria (excessive urination), and polyphagia (excessive appetite). Decreased appetite, lingering cough and cold, and pain on urination aren't related to diabetes. Decreased appetite reflects a GI disorder; cough and cold indicate an upper respiratory problem; and pain on urination suggests a urinary tract infection.

A client has just been diagnosed with type 1 diabetes. When teaching the client and family how diet and exercise affect insulin requirements, the nurse should include which guideline?

"You'll need less insulin when you exercise or reduce your food intake." ----- The nurse should advise the client that exercise, reduced food intake, hypothyroidism, and certain medications decrease insulin requirements. Growth, pregnancy, greater food intake, stress, surgery, infection, illness, increased insulin antibodies, and certain medications increase insulin requirements.

A client newly diagnosed with diabetes mellitus asks why he needs ketone testing when the disease affects his blood glucose levels. How should the nurse respond?

"Ketones will tell us if your body is using other tissues for energy." ----- The nurse should tell the client that ketones are a byproduct of fat metabolism and that ketone testing can determine whether the body is breaking down fat to use for energy. The spleen doesn't release ketones when the body can't use glucose. Although ketones can damage the eyes and kidneys and help the physician evaluate the severity of a client's diabetes, these responses by the nurse are incomplete.

A client with diabetes mellitus must learn how to self-administer insulin. The physician has ordered 10 units of U-100 regular insulin and 35 units of U-100 isophane insulin suspension (NPH) to be taken before breakfast. When teaching the client how to select and rotate insulin injection sites, the nurse should provide which instruction?

"Rotate injection sites within the same anatomic region, not among different regions." ----- The nurse should instruct the client to rotate injection sites within the same anatomic region. Rotating sites among different regions may cause excessive day-to-day variations in the blood glucose level; also, insulin absorption differs from one region to the next. Insulin should be injected only into healthy tissue lacking large blood vessels, nerves, or scar tissue or other deviations. Injecting insulin into areas of hypertrophy may delay absorption. The client shouldn't inject insulin into areas of lipodystrophy (such as hypertrophy or atrophy); to prevent lipodystrophy, the client should rotate injection sites systematically. Exercise speeds drug absorption, so the client shouldn't inject insulin into sites above muscles that will be exercised heavily.

A nurse is assessing a client who is receiving total parenteral nutrition (TPN). Which finding suggests that the client has developed hyperglycemia?

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Which of the following medications is considered a glitazone?

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A nurse is preparing a continuous insulin infusion for a child with diabetic ketoacidosis and a blood glucose level of 800 mg/dl. Which solution is the most appropriate at the beginning of therapy?

100 units of regular insulin in normal saline solution ----- Continuous insulin infusions use only short-acting regular insulin. Insulin is added to normal saline solution and administered until the client's blood glucose level falls. Further along in the therapy, a dextrose solution is administered to prevent hypoglycemia.

A client with type 1 diabetes is to receive a short-acting insulin and an intermediate-acting insulin subcutaneously before breakfast. The nurse would administer the insulin at which site as the preferred site?

Abdomen ----- Although the arms, thighs, and lower back can be used, the preferred site insulin administration is the abdomen which allows more rapid absorption.

Which of the following would be inconsistent as a cause of DKA?

Competency in injecting insulin ----- Being able to competently inject insulin is not a cause of DKA. Undiagnosed and untreated diabetes decreased or missed dose of insulin, and illness or infection are potential causes of DKA.

Which of the following is an age-related change that may affect diabetes and its management?

Decreased renal function ----- Decreased renal function affects the management of diabetes. Other age-related changes that may affect diabetes and its management include hypertension, decreased bowel motility, and decreased thirst.

A client with a serum glucose level of 618 mg/dl is admitted to the facility. He's awake and oriented, has hot dry skin, and has the following vital signs: temperature of 100.6° F (38.1° C), heart rate of 116 beats/minute, and blood pressure of 108/70 mm Hg. Based on these assessment findings, which nursing diagnosis takes highest priority?

Deficient fluid volume related to osmotic diuresis ----- A serum glucose level of 618 mg/dl indicates hyperglycemia, which causes polyuria and fluid volume deficit, making Deficient fluid volume related to osmotic diuresis the highest priority. In this client, tachycardia is more likely to result from fluid volume deficit than from decreased cardiac output because his blood pressure is normal. Although the client's serum glucose is elevated, food isn't a priority because fluids and insulin should be administered to lower the serum glucose level. Therefore, a diagnosis of Imbalanced nutrition: Less than body requirements isn't appropriate. A temperature of 100.6° F isn't life-threatening, eliminating Ineffective thermoregulation as the top priority.

Which of the following insulins are used for basal dosage?

Glarginet (Lantus) ----- Lantus is used for basal dosage. NPH is an intermediate acting insulin, usually taken after food. Humalog and Novolog are rapid-acting insulins.

HHNS common S&S? DKA common S&S?

HHNS: Low K+, excessive urination, normal pH, absence of urine and serum ketones DKA: excessive urination, dehydration, low pH, Ketones

A client with type 1 diabetes is admitted to an acute care facility with diabetic ketoacidosis. To correct this acute diabetic emergency, which measure should the health care team take first?

Initiate fluid replacement therapy. ----- The health care team first initiates fluid replacement therapy to prevent or treat circulatory collapse caused by severe dehydration. Although diabetic ketoacidosis results from insulin deficiency, the client must have an adequate fluid volume before insulin can be administered; otherwise, the drug won't circulate throughout the body effectively. Therefore, insulin administration follows fluid replacement therapy. Determining and correcting the cause of diabetic ketoacidosis are important steps, but the client's condition must first be stabilized to prevent life-threatening complications.

A client with diabetes mellitus is prescribed to switch from animal to synthesized human insulin. Which of the following factors should the nurse monitor when caring for the client?

Low blood glucose levels ----- Clients who switch from animal to synthesized human insulin should be monitored for low blood glucose levels initially because the human form of insulin is used more effectively.

A nurse expects to find which signs and symptoms in a client experiencing hypoglycemia?

Nervousness, diaphoresis, and confusion ----- Signs and symptoms associated with hypoglycemia include nervousness, diaphoresis, weakness, light-headedness, confusion, paresthesia, irritability, headache, hunger, tachycardia, and changes in speech, hearing, or vision. If untreated, signs and symptoms may progress to unconsciousness, seizures, coma, and death. Polydipsia, polyuria, and polyphagia are symptoms associated with hyperglycemia.

Laboratory studies indicate a client's blood glucose level is 185 mg/dl. Two hours have passed since the client ate breakfast. Which test would yield the most conclusive diagnostic information about the client's glucose use?

Serum glycosylated hemoglobin (Hb A1c) ----- Hb A1c is the most reliable indicator of glucose use because it reflects blood glucose levels for the prior 3 months. Although a fasting blood glucose test and a 6-hour glucose tolerance test yield information about a client's use of glucose, the results are influenced by such factors as whether the client recently ate breakfast. Presence of ketones in the urine also provides information about glucose use but is limited in its diagnostic significance.

After taking glipizide (Glucotrol) for 9 months, a client experiences secondary failure. What should the nurse expect the physician to do?

Switch the client to a different oral anti diabetic agent. ----- The nurse should anticipate that the physician will order a different oral antidiabetic agent. Many clients (25% to 60%) who take glipizide respond to a different oral antidiabetic agent. Therefore, it wouldn't be appropriate to initiate insulin therapy at this time. However, if a new oral antidiabetic agent is unsuccessful in keeping glucose levels at an acceptable level, insulin may be used in addition to the antidiabetic agent. Restricting carbohydrate intake isn't necessary.

Glycosylated hemoglobin reflects blood glucose levels over which period of time?

2 months ----- Glycosylated hemoglobin is a blood test that reflects average blood glucose levels over a period of approximately 2 to 3 months.

As a nurse educator, you have been invited to your local senior center to discuss health-maintaining strategies for older adults. During your education session on nutrition, you approach the subject of diabetes mellitus, its symptoms and consequences. What is the prevalence of Type I diabetes?

5% to 10% of all diagnosed cases ----- Type 1 diabetes accounts for approximately 5% to 10% of all diagnosed cases of diabetes (National Institute of Diabetes and Digestive and Kidney Diseases [NIDDK], 2008).

For a client with hyperglycemia, which assessment finding best supports a nursing diagnosis of Deficient fluid volume?

Increased urine osmolarity ----- In hyperglycemia, urine osmolarity (the measurement of dissolved particles in the urine) increases as glucose particles move into the urine. The client experiences glucosuria and polyuria, losing body fluids and experiencing deficient fluid volume. Cool, clammy skin; jugular vein distention; and a decreased serum sodium level are signs of fluid volume excess, the opposite imbalance.

Which of the following factors is the focus of nutrition intervention for clients with type 2 diabetes?

Weight loss ----- Weight loss is the focus of nutrition intervention for clients with Type 2 diabetes. A low-calorie diet may improve clinical symptoms; even a mild to moderate weight loss such as 10 to 20 lb may lower blood glucose levels and improve insulin action.

During a class on exercise for clients with diabetes mellitus, a client asks the nurse educator how often to exercise. To meet the goals of planned exercise, the nurse educator should advise the client to exercise:

at least three times per week ----- Clients with diabetes must exercise at least three times per week to meet the goals of planned exercise — lowering the blood glucose level, reducing or maintaining the proper weight, increasing the serum high-density lipoprotein level, decreasing serum triglyceride levels, reducing blood pressure, and minimizing stress. Exercising once per week wouldn't achieve these goals. Exercising more than three times per week, although beneficial, would exceed the minimum requirement.

A nurse is assigned to care for a postoperative client with diabetes mellitus. During the assessment interview, the client reports that he's impotent and says he's concerned about the effect on his marriage. In planning this client's care, the most appropriate intervention would be to:

suggest referral to a sex counselor or other appropriate professional. ----- The nurse should refer this client to a sex counselor or other professional. Making appropriate referrals is a valid part of planning the client's care. The nurse doesn't normally provide sex counseling.

Lispro (Humalog) is an example of which type of insulin?

Rapid-acting ----- Humalog is a rapid-acting insulin. NPH is an intermediate-acting insulin. A short-acting insulin is Humulin-R. An example of a long-acting insulin is Glargine (Lantus).

A nurse is preparing to administer insulin to a child who's just been diagnosed with type 1 diabetes. When the child's mother stops the nurse in the hall, she's crying and anxious to talk about her son's condition. The nurse's best response is:

"I'm going to give your son some insulin. Then I'll be happy to talk with you." ----- Attending to the mother's needs is a critical part of caring for a sick child. In this case however, administering insulin in a prompt manner supersedes the mother's needs. By informing the mother that she's going to administer the insulin and will then make time to talk with her, the nurse recognizes the mother's needs as legitimate. She provides a reasonable response while attending to the priority of administering insulin as soon as possible. Telling the mother that she can't talk with her or telling her to wait for the physician could increase the mother's fear and anxiety. The nurse shouldn't tell the mother that everything will be fine; the nurse doesn't know that everything will be fine.

Which instruction should a nurse give to a client with diabetes mellitus when teaching about "sick day rules"?

"Test your blood glucose every 4 hours." ----- The nurse should instruct a client with diabetes mellitus to check his blood glucose levels every 3 to 4 hours and take insulin or an oral antidiabetic agent as usual, even when he's sick. If the client's blood glucose level rises above 300 mg/dl, he should call his physician immediately. If the client is unable to follow the regular meal plan because of nausea, he should substitute soft foods, such as gelatin, soup, and custard.

A physician orders blood glucose levels every 4 hours for a 4-year-old child with brittle type 1 diabetes. The parents are worried that drawing so much blood will traumatize their child. How can the nurse best reassure the parents?

"Your child will need less blood work as his glucose levels stabilize." ----- Telling the parents that the number of blood draws will decrease as their child's glucose levels stabilize engages them in the learning process and gives them hope that the present discomfort will end as the child's condition improves. Telling the parents that their child won't remember the experience disregards their concerns and anxiety. The nurse shouldn't offer to ask the physician if he can reduce the number of blood draws; the physician needs the laboratory results to monitor the child's condition properly. Although telling the parents that the laboratory technicians are gentle and use tiny needles may be reassuring, it isn't the most appropriate response.

A nurse is teaching a client with diabetes mellitus about self-management of his condition. The nurse should instruct the client to administer 1 unit of insulin for every:

15 g of carbohydrates. ----- The nurse should instruct the client to administer 1 unit of insulin for every 15 g of carbohydrates.

A client with diabetes comes to the clinic for a follow-up visit. The nurse reviews the client's glycosylated hemoglobin test results. Which result would indicate to the nurse that the client's blood glucose level has been well-controlled?

6.5% ----- Normally the level of glycosylated hemoglobin is less than 7%. Thus a level of 6.5% would indicate that the client's blood glucose level is well-controlled. According to the American Diabetes Association, a glycosylated hemoglobin of 7% is equivalent to an average blood glucose level of 150 mg/dL. Thus, a level of 7.5% would indicate less control. Amount of 8% or greater indicate that control of the client's blood glucose level has been inadequate during the previous 2 to 3 months.

A client is receiving insulin lispro at 7:30 AM. The nurse ensures that the client has breakfast by which time?

7:35 AM ----- Insulin lispro has an onset of 10 to 15 minutes. Therefore, the nurse would need to ensure that the client has his breakfast by 7:35 AM. Otherwise, the client may experience hypoglycemia.

A client with type 1 diabetes is scheduled to receive 30 units of 70/30 insulin. There is no 70/30 insulin available. As a substitution, the nurse may give the client:

9 units regular insulin and 21 units neutral protamine Hagedorn (NPH). ----- A 70/30 insulin preparation is 70% NPH and 30% regular insulin. Therefore, a correct substitution requires mixing 21 units of NPH and 9 units of regular insulin. The other choices are incorrect dosages for the ordered insulin.

A nurse is teaching a client about insulin infusion pump use. What intervention should the nurse include to prevent infection at the injection site?

Change the needle every 3 days. ----- The nurse should teach the client to change the needle every 3 days to prevent infection. The client doesn't need to wear gloves when inserting the needle. Antibiotic therapy isn't necessary before initiating treatment. Sterile technique, not clean technique, is needed when changing the needle.

A client with long-standing type 1 diabetes is admitted to the hospital with unstable angina pectoris. After the client's condition stabilizes, the nurse evaluates the diabetes management regimen. The nurse learns that the client sees the physician every 4 weeks, injects insulin after breakfast and dinner, and measures blood glucose before breakfast and at bedtime. Consequently, the nurse should formulate a nursing diagnosis of:

Deficient knowledge (treatment regimen). ----- The client should inject insulin before, not after, breakfast and dinner — 30 minutes before breakfast for the a.m. dose and 30 minutes before dinner for the p.m. dose. Therefore, the client has a knowledge deficit regarding when to administer insulin. By taking insulin, measuring blood glucose levels, and seeing the physician regularly, the client has demonstrated the ability and willingness to modify his lifestyle as needed to manage the disease. This behavior eliminates the nursing diagnoses of Impaired adjustment and Defensive coping. Because the nurse, not the client, questioned the client's health practices related to diabetes management, the nursing diagnosis of Health-seeking behaviors isn't warranted.

A nurse obtains a fingerstick glucose level of 45 mg/dl on a client newly diagnosed with diabetes mellitus. The client is alert and oriented, and the client's skin is warm and dry. How should the nurse intervene?

Obtain a repeat fingerstick glucose level. ----- The nurse should recheck the fingerstick glucose level to verify the original result because the client isn't exhibiting signs of hypoglycemia. The nurse should give the client milk and a graham cracker with peanut butter or a glass of orange juice after confirming the low glucose level. It isn't necessary to notify the physician or to obtain a serum glucose level at this time.

A client who was diagnosed with type 1 diabetes 14 years ago is admitted to the medical-surgical unit with abdominal pain. On admission, the client's blood glucose level is 470 mg/dl. Which finding is most likely to accompany this blood glucose level?

Rapid, thready pulse ----- This client's abnormally high blood glucose level indicates hyperglycemia, which typically causes polyuria, polyphagia, and polydipsia. Because polyuria leads to fluid loss, the nurse should expect to assess signs of deficient fluid volume, such as a rapid, thready pulse; decreased blood pressure; and rapid respirations. Cool, moist skin and arm and leg trembling are associated with hypoglycemia. Rapid respirations — not slow, shallow ones — are associated with hyperglycemia

The greatest percentage of people have which type of diabetes?

Type 2 ----- Type 2 diabetes accounts for 90% to 95% of all diabetes. Type 1 accounts for 5% to 10% of all diabetes. Gestational diabetes has an onset during pregnancy. Impaired glucose tolerance is defined as an oral glucose tolerance test value between 140 mg/dL and 200 mg/dL.

Which of the following factors is the focus of nutrition intervention for patients with type 2 diabetes?

Weight loss ----- Weight loss is the focus of nutrition intervention for patients with type 2 diabetes. A low-calorie diet may improve clinical symptoms, and even a mild to moderate weight loss, such as 10 to 20 pounds, may lower blood glucose levels and improve insulin action. Consistency in the total amount of carbohydrate consumed is considered an important factor influencing blood glucose level. Protein metabolism is not the focus of nutrition intervention for patients with type 2 diabetes.

A nurse is preparing the daily care plan for a client with newly diagnosed diabetes mellitus. The priority nursing concern for this client should be:

providing client education at every opportunity. ----- The nurse should use routine care responsibilities as teaching opportunities with the intention of preparing the client to understand and eventually manage his disease. Monitoring blood glucose, checking for the presence of ketones, and administering insulin are important when caring for a client with diabetes, but they aren't the priority of care.

A 32-year-old client has an appointment at the weight loss clinic where you practice nursing. She has gained 55 lbs. in the last three years and is concerned about developing Type 2 diabetes mellitus, especially since her parents both have developed the disorder. What are the conditions which contribute to developing metabolic syndrome? Choose all correct options.

• Abdominal obesity • Elevated blood glucose levels ----- Some experts believe that diabetes in adults is one consequence of metabolic syndrome, which includes elevated blood glucose levels, hypertension, hypercholesterolemia, and abdominal obesity.

When referred to a podiatrist, a client newly diagnosed with diabetes mellitus asks, "Why do you need to check my feet when I'm having a problem with my blood sugar?" The nurse's most helpful response to this statement is:

"Diabetes can affect sensation in your feet and you can hurt yourself without realizing it." ----- The nurse should make the client aware that diabetes affects sensation in the feet and that he might hurt his foot but not feel the wound. Although it's important that the client's shoes fit properly, this isn't the only reason the client's feet need to be checked. Telling the client that diabetes mellitus increases the risk of infection or stating that the circulation in the client's feet indicates the severity of his diabetes doesn't provide the client with complete information.

An agitated, confused client arrives in the emergency department. The client's history includes type 1 diabetes, hypertension, and angina pectoris. Assessment reveals pallor, diaphoresis, headache, and intense hunger. A stat blood glucose sample measures 42 mg/dl, and the client is treated for an acute hypoglycemic reaction. After recovery, the nurse teaches the client to treat hypoglycemia by ingesting:

10 to 15 g of a simple carbohydrate. ----- To reverse hypoglycemia, the American Diabetes Association recommends ingesting 10 to 15 g of a simple carbohydrate, such as three to five pieces of hard candy, two to three packets of sugar (4 to 6 tsp), or 4 oz of fruit juice. Then the client should check his blood glucose after 15 minutes. If necessary, this treatment may be repeated in 15 minutes. Ingesting only 2 to 5 g of a simple carbohydrate may not raise the blood glucose level sufficiently. Ingesting more than 15 g may raise it above normal, causing hyperglycemia.

A nurse expects to note an elevated serum glucose level in a client with hyperosmolar hyperglycemic nonketotic syndrome (HHNS). Which other laboratory finding should the nurse anticipate?

Below-normal serum potassium level ----- A client with HHNS has an overall body deficit of potassium resulting from diuresis, which occurs secondary to the hyperosmolar, hyperglycemic state caused by the relative insulin deficiency. An elevated serum acetone level and serum ketone bodies are characteristic of diabetic ketoacidosis. Metabolic acidosis, not serum alkalosis, may occur in HHNS.

An obese Hispanic client, age 65, is diagnosed with type 2 diabetes. Which statement about diabetes mellitus is true?

Diabetes mellitus is more common in Hispanics and Blacks than in Whites. ----- Diabetes mellitus is more common in Hispanics and Blacks than in Whites. Only about one-third of clients with diabetes mellitus are older than age 60 and 85% to 90% have type 2. At least 80% of clients diagnosed with type 2 diabetes mellitus are obese.

Which combination of adverse effects should a nurse monitor for when administering I.V. insulin to a client with diabetic ketoacidosis?

Hypokalemia and hypoglycemia ----- Blood glucose needs to be monitored in clients receiving I.V. insulin because of the risk of hyperglycemia or hypoglycemia. Hypoglycemia might occur if too much insulin is administered. Hypokalemia, not hyperkalemia, might occur because I.V. insulin forces potassium into cells, thereby lowering the plasma level of potassium. Calcium and sodium levels aren't affected by I.V. insulin administration.

The nurse is preparing a presentation for a group of adults at a local community center about diabetes. Which of the following would the nurse include as associated with type 2 diabetes?

Insulin production insufficient ----- Type 2 diabetes is characterized by insulin resistance or insufficient insulin production. It is more common in aging adults, and now accounts for 20% of all newly diagnosed cases. Type 1 diabetes is more likely in childhood and adolescence although it can occur at any age. It accounts for approximately 5% to 10% of all diagnosed cases of diabetes. Pre-diabetes can lead to type 2 diabetes.

The nurse is describing the action of insulin in the body to a client newly diagnosed with type 1 diabetes. Which of the following would the nurse explain as being the primary action?

It enhances transport of glucose across the cell wall. ----- Insulin carries glucose into body cells as their preferred source of energy. Besides, it promotes the liver's storage of glucose as glycogen and inhibits the breakdown of glycogen back into glucose. Insulin does not aid in gluconeogenesis but inhibits the breakdown of glycogen back into glucose.

A client with a tentative diagnosis of hyperosmolar hyperglycemic nonketotic syndrome (HHNS) has a history of type 2 diabetes that is being controlled with an oral diabetic agent, tolazamide (Tolinase). Which laboratory test is the most important for confirming this disorder?

Serum osmolarity ----- Serum osmolarity is the most important test for confirming HHNS; it's also used to guide treatment strategies and determine evaluation criteria. A client with HHNS typically has a serum osmolarity of more than 350 mOsm/L. Serum potassium, serum sodium, and ABG values are also measured, but they aren't as important as serum osmolarity for confirming a diagnosis of HHNS. A client with HHNS typically has hypernatremia and osmotic diuresis. ABG values reveal acidosis, and the potassium level is variable.

Which of the following categories of oral antidiabetic agents exert their primary action by directly stimulating the pancreas to secrete insulin?

Sulfonylureas ----- A functioning pancreas is necessary for sulfonylureas to be effective. Thiazolidinediones enhance insulin action at the receptor site without increasing insulin secretion from the beta cells of the pancreas. Biguanides facilitate insulin's action on peripheral receptor sites. Alpha glucosidase inhibitors delay the absorption of glucose in the intestinal system, resulting in a lower postprandial blood glucose level.

A client with diabetes mellitus develops sinusitis and otitis media accompanied by a temperature of 100.8° F (38.2° C). What effect do these findings have on his need for insulin?

They increase the need for insulin. ----- Insulin requirements increase in response to growth, pregnancy, increased food intake, stress, surgery, infection, illness, increased insulin antibodies, and some medications. Insulin requirements are decreased by hypothyroidism, decreased food intake, exercise, and some medications.

Which of the following is an age-related change that may affect diabetes? Select all that apply.

• Decreased renal function • Taste changes • Decreased vision ----- Age-related changes include decreased renal function, taste changes, decreased vision, decreased bowel motility, and decreased proprioception.

Which of the following is a characteristic of diabetic ketoacidosis (DKA)? Select all that apply.

• Elevated blood urea nitrogen (BUN) and creatinine • Rapid onset • More common in type 1 diabetes HINT: BUN and 1 rhyme ----- DKA is characterized by an elevated BUN and creatinine, rapid onset, and it is more common in type 1 diabetes. Hyperglycemic hyperosmolar nonketotic syndrome (HHNS) is characterized by the absence of urine and serum ketones and a normal arterial pH level.

Which of the following is a risk factor for the development of diabetes mellitus? Select all that apply.

• Hypertension • Obesity • Family history • Age greater of 45 years or older • History of gestational diabetes ----- Risk factors for the development of diabetes mellitus include hypertension, obesity, family history, age of 45 years or older, and a history of gestational diabetes.