Deck 25: Endocrine Disorders

Question 1

What kind of control mechanism is indicated when increased blood glucose levels stimulate increased secretion of insulin?

A) control by releasing hormones
B) control by tropic hormones
C) negative feedback control
D) hypothalamus/hypophysis coordination

Answer 1

negative feedback control

Question 2

Which of the following indicates compensated acidosis in the diabetic?

A) increased serum bicarbonate
B) serum pH of 7.35
C) increased serum carbonic acid
D) urine pH 8.0

Answer 2

serum pH of 7.35

Question 3

Which of the following hormonal imbalances causes Addison's disease?

A) increased glucocorticoids
B) decreased glucocorticoids
C) deficit of ADH
D) deficit of T3 and T4

Answer 3

decreased glucocorticoids

Question 4

Which of the following may cause insulin shock to develop?

A) recurrent vomiting
B) missing an insulin dose
C) eating excessively large meals
D) sedentary lifestyle

Question 5

Choose the statement that applies to Type I diabetes mellitus.

A) Onset often occurs during childhood.
B) Relative insufficiency of insulin or insulin resistance develops.
C) It can be treated by diet,weight control and exercise,or oral hypoglycemics.
D) Complications rarely occur.

Question 6

Why does polyuria develop with diabetes mellitus?

A) increased thirst
B) ketoacidosis
C) glucosuria develops
D) diabetic nephropathy

Question 7

Which one of the following develops hypoglycemia more frequently?

A) Type I diabetics
B) Type II diabetics
C) patients with a poor stress response
D) those with a regular exercise and meal plan

Question 8

What is caused by hyperparathyroidism?

A) hypocalcemia
B) tetany
C) bone demineralization
D) deficit of vitamin D

Question 9

Why is amputation frequently a necessity in diabetics?

A) necrosis and gangrene in the feet and legs
B) lack of glucose to the cells in the feet and legs
C) severe dehydration in the tissues
D) elevated blood glucose increasing blood viscosity

Question 10

What causes loss of consciousness in a person with diabetic ketoacidosis?

A) toxic effects of excessive insulin
B) excessive glucose in the blood
C) acidosis and hypovolemia
D) lack of glucose in brain cells

Question 11

What is a precipitating factor for diabetic ketoacidosis?

A) skipping a meal
B) strenuous exercise
C) serious infection
D) insulin overdose

Question 12

Which of the following does NOT usually develop as a complication of diabetes?

A) osteoporosis
B) nephropathy
C) impotence
D) peripheral neuropathy

Question 13

Which of the following indicates hypoglycemia in a diabetic?

A) deep,rapid respirations
B) flushed dry skin and mucosa
C) thirst and oliguria
D) staggering gait,disorientation,and confusion

Question 14

Which of the following hormonal imbalances causes myxedema?

A) increased glucocorticoids
B) decreased glucocorticoids
C) deficit of ADH
D) deficit of T3 and T4

Question 15

Which of the following are signs of diabetic ketoacidosis in an unconscious person?

A) pale moist skin
B) thirst and poor skin turgor
C) deep rapid respirations and fruity breath odor
D) tremors and strong rapid pulse

Question 16

Which of the following hormonal imbalances causes diabetes insipidus?

A) increased insulin
B) decreased glucocorticoids
C) deficit of ADH
D) deficit of T3 and T4

Question 17

What is the most common cause of endocrine abnormalities?

A) malignant neoplasm
B) infection
C) congenital defect
D) benign tumor

Question 18

Visual impairment may develop in diabetics,primarily because of:

A) abnormal metabolism in the lens
B) macroangiopathy
C) neuropathy affecting cranial nerves
D) development of exophthalmos

Question 19

What is the cause of diabetic ketoacidosis?

A) excess insulin in the body
B) loss of glucose in the urine
C) failure of the kidney to excrete sufficient acids
D) increased catabolism of fats and proteins

Question 20

How do many oral hypoglycemic drugs act?

A) to replace insulin in patients with IDDM
B) to transport glucose into body cells
C) to prevent gluconeogenesis
D) to stimulate the pancreas to produce more insulin

Question 21

Dwarfism is caused by:

A) excessive levels of somatotropin (GH)
B) a deficit of somatotropin (GH)
C) excessive levels of insulin
D) excessive levels of parathyroid hormone

Question 22

Why does glucosuria occur in diabetics?

A) Excess ketoacids displace glucose into the filtrate.
B) Excess water in the filtrate draws more glucose into the urine.
C) The amount of glucose in the filtrate exceeds the renal tubule transport limit.
D) Sufficient insulin is not available for glucose reabsorption.

Question 23

Characteristics of Cushing's syndrome include all of the following EXCEPT:

A) heavy body and round face
B) atrophied skeletal muscle in the limbs
C) staring eyes with infrequent blinking
D) atrophy of the lymph nodes

Question 24

Which signs are typical of Graves' disease?

A) facial puffiness,bradycardia,and lethargy
B) exophthalmos,heat intolerance,and restlessness
C) delayed physical and intellectual development
D) goiter and decreased BMR

Question 25

What is/are the effect(s)of thyrotoxic crisis?

A) hyperthermia and heart failure
B) hypotension and hypoglycemia
C) toxic goiter and hypometabolism
D) decreased stress response

Question 26

Which of the following does NOT apply to inappropriate ADH syndrome?

A) The cause is excess ADH secretion.
B) Severe hyponatremia results.
C) Excessive sodium is retained.
D) Fluid retention increases.

Question 27

Which of the following is an effect of long-term glucocorticoid therapy?

A) decreased secretion from the adrenal cortex gland
B) an increased inflammatory response to irritants
C) hypotension and poor circulation
D) increased number of hypersensitivity reactions

Question 28

Which of the following is an effect of Addison's disease?

A) elevated blood glucose levels
B) high blood pressure
C) low serum potassium levels
D) poor stress response

Question 29

Which of the following conditions may cause immunosuppression?

A) Graves' disease
B) acromegaly
C) Cushing's disease
D) diabetes insipidus

Question 30

Which of the following conditions may precipitate or exacerbate hyperglycemia?

A) hypothyroidism
B) Cushing's disease
C) Addison's disease
D) growth hormone deficit

Question 31

Why does diabetes insipidus cause polyuria?

A) There is increased osmotic pressure of the filtrate.
B) Damaged tubules cannot reabsorb sufficient fluid.
C) Excessive ADH secretion is present.
D) There is a deficit of ADH.
E) Excessive aldosterone is secreted.

Question 32

Which characteristic of hyperosmolar hyperglycemic nonketotic coma (HHNK)differentiates it from diabetic ketoacidosis?

A) Dehydration is less severe.
B) Ketonuria is not present.
C) It only develops in Type 1 diabetes mellitus.
D) CNS depression develops.

Question 33

Complications of diabetes mellitus include:

A) peripheral neuropathy
B) frequent infections
C) cataracts
D) a,c
E) a,b,c

Question 34

Which of the following often causes hyperparathyroidism?

A) a malignant tumor in the parathyroid glands
B) end-stage renal failure
C) osteoporosis
D) radiation involving the thyroid gland and neck area

Question 35

Which of the following applies to acromegaly?

A) It occurs in infants and children.
B) It causes excessive longitudinal bone growth.
C) It results from excessive secretion of GH.
D) It does not change soft tissue growth.

Question 36

What is the recommended treatment for insulin shock if the patient remains conscious?

A) administration of insulin
B) administration of intravenous glucose
C) administration of epinephrine
D) oral administration of concentrated glucose

Question 37

What is the most common cause of type 1 diabetes mellitus?

A) increased glucose production in the liver
B) destruction of pancreatic cells by an autoimmune reaction
C) increased resistance of body cells to insulin action
D) chronic obesity

Question 38

All these tissues use glucose without the aid of insulin EXCEPT:

A) liver
B) digestive system
C) exercising skeletal muscle
D) brain

Question 39

Which of the following results from a deficit of antidiuretic hormone (ADH)?

A) inappropriate ADH syndrome
B) gigantism
C) diabetes insipidus
D) myxedema

Question 40

Differences between Type I and Type II diabetes include:

A) Type 1 diabetes weight gain is common,and Type II weight loss often occurs
B) Type 1 diabetes leads to fewer complications than Type II diabetes
C) Type 1 diabetes may be controlled by adjusting dietary intake and exercise,but Type II diabetes requires insulin replacement
D) Type 1 diabetes occurs more frequently in children and adolescents,and Type II diabetes occurs more often in adults
E) None of the above are correct.

Question 41

Trophic hormones include:

A) insulin
B) glucagon
C) triiodothyronine
D) adrenocorticotropic hormone

Question 42

Which of the following is caused by Graves' disease?

A) increased metabolic rate
B) decreased size of thyroid gland
C) bradycardia and hypothermia
D) decreased blood levels of T3,T4,and TSH
E) increased epinephrine and norepinephrine

Question 43

Which of the following is a major function of the hormone norepinephrine?

A) inhibition of an excessive stress response
B) visceral and cutaneous vasoconstriction
C) increased force of heart contraction
D) vasodilation in skeletal muscle

Question 44

Which diagnostic test is useful in determining if a pituitary dysfunction is causing a thyroid disorder?

A) serum levels of thyroxine and triiodothyronine
B) serum TSH levels
C) uptake of radioactive iodine (T3 uptake test)
D) presence of antibodies to T3 and T4

Question 45

A benign tumor of the adrenal medulla that secretes epinephrine and norepinephrine is called:

A) pheochromocytoma
B) Cushing's syndrome
C) Graves' disease
D) Addison's disease

Question 46

Metabolic syndrome is marked by:

A) abnormal lipid and glucose metabolism
B) periodic hypotension
C) deficit of glucagon
D) early onset on Type I diabetes mellitus

Question 47

Why does hypocalcemia cause tetany?

A) Skeletal muscle contractions are weaker.
B) Nerves to skeletal muscle are more excitable.
C) Calcium is not stored in skeletal muscle cells.
D) Serum phosphate levels are low.

Question 48

Which of the following may occur with a pituitary adenoma?

A) low blood pressure and bradycardia
B) headache and seizures
C) vomiting and diarrhea
D) loss of vision in one eye

Question 49

Goiters occur more frequently in persons living in the:

A) Great Lakes or mountainous regions
B) southwest USA
C) temperate regions
D) areas bordering the oceans

Question 50

Which of the following may cause hypertension?

A) hypoparathyroidism
B) hypoglycemia
C) pheochromocytoma
D) Addison's disease

Question 51

Diabetic retinopathy results from:

A) degeneration of large blood vessels supplying the eye
B) abnormal metabolism in the lens of the eye
C) neuropathy affecting the optic nerve
D) obstruction or rupture of retinal blood vessels

Question 52

Severe impairment of all aspects of growth and development,including difficulty feeding,mental retardation,and stunted skeletal growth are associated with:

A) myxedema
B) Cushing's syndrome
C) diabetes insipidus
D) cretinism
E) Graves' disease

Question 53

Which of the following hormones is involved in both the stress response and the anti-inflammatory response?

A) aldosterone
B) norepinephrine
C) thyroxine
D) cortisol

Question 54

Which of the following may cause high serum levels of parathyroid hormone?

A) hypoparathyroidism
B) chronic renal failure
C) hypercalcemia
D) adenoma in the thyroid gland

Question 55

Compensation mechanisms occurring in the early stage of diabetic ketoacidosis include:

A) Kussmaul's respirations
B) polydipsia
C) ketonuria
D) seizures

Question 56

The anterior pituitary gland secretes all of the following hormones EXCEPT:

A) prolactin (PRL)
B) glucagon
C) adrenocorticotropic hormone (ACTH)
D) growth hormone (GH)
E) antidiuretic hormone

Question 57

Catabolic effects of Cushing's syndrome include:

A) osteoporosis
B) hypertension
C) increased erythrocyte production
D) moon face and buffalo hump

Question 58

Which of the following are likely present in a patient immobilized for a long period of time?

A) hypocalcemia and low serum PTH levels
B) hypocalcemia and high serum PTH levels
C) hypercalcemia and low serum PTH levels
D) hypercalcemia and high serum PTH levels

Question 59

Early signs of hyperglycemia include polyphagia,which means :

A) thirst
B) increased urine output
C) hunger
D) glucose in the urine

Question 60

Polydipsia occurs with diabetes mellitus when:

A) lack of insulin causes hunger
B) ketone levels rise in the blood
C) polyuria causes dehydration
D) glucosuria causes ketoacidosis