Endocrine System and Disorders- Notes from slideshow (quiz 3) PART 1 Flashcards
What bodily mechanisms does the endocrine regulate?
- Growth & Reproduction
- Water balance & Metabolism
- Calcium and BS levels
- Response to stress
- Growth
- Water balance
- Reproduction
- Metabolism
- Calcium and BS levels
- Response to stress
What bodily mechanisms does the endocrine regulate?
What organs are included in the endocrine system?
- Pituitary
- Ovaries & Testes
- Thyroid & Parathyroids
- Pancreas & Adrenals
This course is only focusing on what organs?
- Thyroid
- Pancreas
- Adrenals
The endocrine system regulates (metabolism) by means of _______.
Thyroid
The endocrine system regulates (calcium and BS levels) by means of _______.
Thyroid and pancreas
The endocrine system regulates (response to stress) by means of _______.
Adrenals
The endocrine system regulates _____ by means of (thyroid).
Metabolism
The endocrine system regulates _____ by means of (thyroid and pancreas).
Calcium and BS levels
The endocrine system regulates _____ by means of (adrenals).
Response to stress
Where are adrenals located?
On top of kidneys
Where is thyroid located
in neck
Where is pancreas located?
b/w kidneys
What hormones does the thyroid excrete?
- T3 and T4
2. Calcitonin
What type of hormone are T3 and T4?
Amine
What type of hormone is calcitonin?
Peptide
What does T3 and T4 do?
- Increase metabolism
- Blood pressure
- Regulates tissue growth
What does calcitonin do?
In Children:
- Regulates of blood calcium
- Through uptake in bone
What are the different types of adrenal glands?
- Adrenal medulla
2. Adrenal cortex
What hormones does the Adrenal medulla excrete?
- Epi
2. Norepi
What type of hormones are Epi and norepi?
Amine
What does Epi and norepi do?
- Short term stress response:
- increase BS and HR
- vasoconstriction
- blood diversion
What hormones does the Adrenal cortex excrete?
- Glucocorticoids
2. Mineralocorticoids
What type of hormones are Glucocorticoids and Mineralocorticoids?
Steroids
What do Glucocorticoids do?
- Long term stress response
- increased BS levels
- blood vol. maintenance
- immune suppression
What do Mineralocorticoids do?
- Long term stress response
- blood vol. and pressure maintenance
- sodium and H2O retention by kidneys
A condition in which the thyroid gland doesn’t produce enough thyroid hormone.
Hypothyroidism
In general what happens to the body of a pt with hypothyroidism
Everything slows down
Symptoms of Hypothyroidism
- Hair loss/receding hairline/brittle hair and nails
- Apathy
- Lethargy/extreme fatigue
- Dry/coarse/scaly skin
- Muscle aches/weakness
- Constipation
- Intolerance to cold
- Facial/eyelid edema
- Dull blank expression
- Thick tongue
- Slow speech
- Anorexia
- Menstrual disturbances
- Hair loss/receding hairline/brittle hair and nails
- Apathy
- Lethargy/extreme fatigue
- Dry/coarse/scaly skin
- Muscle aches/weakness
- Constipation
- Intolerance to cold
- Facial/eyelid edema
- Dull blank expression
- Thick tongue
- Slow speech
- Anorexia
- Menstrual disturbances
Symptoms of Hypothyroidism
Late clinical manifestations of Hypothyroidism
- Low temp
- Low HR
- Weight gain
- Low LOC
- Thick skin
- Cardiac complications
- Low temp
- Low HR
- Weight gain
- Low LOC
- Thick skin
- Cardiac complications
Late clinical manifestations of Hypothyroidism
Severe hypothyroidism leading to decreased mental status, hypothermia, and other symptoms related to slowing of function in multiple organs.
Myxedema coma
Is Myxedema coma an emergency? Is it fatal?
- Yes
2. Often
In general what happens to the body of a pt with hyperthyroidism?
All the fast reactions
Symptoms of Hyperthyroidism
- Intolerance to heat
- Fine, straight hair
- Bulging eyes
- Enlarged thyroid
- High HR
- High systolic BP
- Breast enlargement
- Weight loss
- Muscle wasting
- Finger clubbing
- Tremors
- Diarrhea
- Amenorrhea
- Localized Edema
- Intolerance to heat
- Fine, straight hair
- Bulging eyes
- Enlarged thyroid
- High HR
- High systolic BP
- Breast enlargement
- Weight loss
- Muscle wasting
- Finger clubbing
- Tremors
- Diarrhea
- Amenorrhea
Symptoms of Hyperthyroidism
Life-threatening health condition that is associated with untreated or undertreated hyperthyroidism.
Thyroid Storm
Thyroid Storm S&S
- High temp
2. Cardiac problems- Increased HR
What type of medication would a pt with thyroid storm need? What’s an example?
- A non specific beta blocker
2. Ex: Inderal (older med)
What should you be careful of when prescribing Inderal for Thyroid Storm?
Since it is non specific it could cause an exacerbation in pts with asthma
Disease that occurs when the immune system attacks the thyroid and destroys it.
Hashimoto’s Disease
Hashimoto’s Disease prevalence in US
- Most common reason for hypothyroidism in US (developed countries)
Why are other forms of hypothyroidism NOT prevalent in the US?
We can buy salt with iron in it so we have an adequate iron intake
Physical characteristic of untreated Hashimoto’s
goiter
Hashimoto’s Disease Risk Factors
- Autoimmune diseases
- Genetics
- Female
- Increased Age
- Elevated thyroid antibody levels
- Bacterial infections
- Excessive iodine intake
- Smoking
- Autoimmune diseases
- Genetics
- Female
- Increased Age
- Elevated thyroid antibody levels
- Bacterial infections
- Excessive iodine intake
Hashimoto’s Disease Risk Factors
Pathophysiology of Hashimoto’s Disease
Destruction of thyroid cells by immune-mediated process
Hashimoto’s Disease Symptoms
- Fatigue
- Constipation
- Day skin
- Weight gain
- Fatigue
- Constipation
- Day skin
- Weight gain
Hashimoto’s Disease Symptoms
When the immune system mistakenly attacks the thyroid gland and causes it to overproduce thyroid hormone. Most common form of hyperthyroidism.
Grave’s Disease
Grave’s Disease Symptoms
- Enlargement of thyroid (goiter)
- Exophthalmos (eye bulging)
- Heat intolerance
- Anxiety/irratability
- Diffuse goiter
- Hand tremors
- Perspiration/moist skin
- Weight loss
- Increased/ireegular HR
- Thick red skin on shins or tops of feet
- Sexual dysfunction
- Frequent BMs
- Enlargement of thyroid (goiter)
- Exophthalmos (eye bulging)
- Heat intolerance
- Anxiety/irratability
- Diffuse goiter
- Hand tremors
- Perspiration/moist skin
- Weight loss
- Increased/ireegular HR
- Thick red skin on shins or tops of feet
- Sexual dysfunction
- Frequent BMs
Grave’s Disease Symptoms
Which tissues are most effected in Grave’s Disease?
- Tissue behind eyes
2. Skin- usually lower legs and feet
What body mechanism is effected in Grave’s Disease? By how much?
- Metabolism
2. 60-100%
Is Grave’s Disease life-threatening?
Rarely
At what age does graves disease develop?
Any age but usually after 20
What gender does graves disease effect?
Any gender but usually women
When questioning a thyroid disorder what test should the APRN order?
TSH
Hypo vs Hyper thyroid: TSH
Hypo: increased
Hyper: decreased
Hypo vs Hyper thyroid: T3 and T4
Hypo: decreased
Hyper: increased
Other causes of Hypothyroidism
- Congenital
- Radiation
- Surgical removal
- Virus
- Autoimmune
- Congenital
- Radiation
- Surgical removal
- Virus
- Autoimmune
Other causes of Hypothyroidism
Other causes of Hyperthyroidism
- Toxic Adenoma
- Multi node goiter
- Thyroid hormone overdose
- Toxic Adenoma
- Multi node goiter
- Thyroid hormone overdose
Other causes of Hyperthyroidism
Disease cased by excess cortisol-like medications or a tumor that produces or results in the production of excessive cortisol.
Cushing’s Syndrome and Cushing’s Disease
Careful not to mix up Cushing’s syndrome and crushing’s disease. What’s the difference?
Cushing’s DISEASE is caused by a pituitary adenoma
What is an example of a cortisol like medication?
prednisone
Symptoms of Cushing’s Syndrome
- Enlarged supraclavicular fat pads (buffalo hump)
- Moon face
- Osteoporosis
- Dark facial hair (women)
- Cardiac hypertrophy
- HTN
- Obesity
- Muscle wasting in limbs (thin extremities, round stomach)
- Poor wound healing
- Abdominal striae
- Amenorrhea
- Enlarged supraclavicular fat pads (buffalo hump)
- Moon face
- Osteoporosis
- Dark facial hair (women)
- Cardiac hypertrophy
- HTN
- Obesity
- Muscle wasting in limbs (thin extremities, round stomach)
- Poor wound healing
- Abdominal striae
- Amenorrhea
Symptoms of Cushing’s Syndrome/Disease
What does Cushing’s Syndrome lead to?
HTN
A disorder in which the adrenal glands don’t produce enough
cortisol (and sometimes aldosterone, too).
Addison’s disease
Common mix-up with symptoms of Addison’s disease? Why is it important not to mix up?
- That the pt is depressed
2. Can lead to lead to adrenal crises
Symptoms of Addison’s Disease
- Bronze skin
- Changes in hair distribution
- Hypoglycemia
- Postural Hypotension
- GI disturbances
- Weakness
- Weight loss
- Bronze skin
- Changes in hair distribution
- Hypoglycemia
- Postural Hypotension
- GI disturbances
- Weakness
- Weight loss
Symptoms of Addison’s Disease
Potentially life-threatening medical condition due to severe adrenal insufficiency caused by insufficient levels of the hormone cortisol.
Adrenal crisis
Symptoms of Adrenal Crisis
- Profound Fatigue
- Dehydration
- Vascular Collapse (low BP)
- Renal Shut down
- Low serum NA
- High serum K
What can adrenal disorders cause?
high and lethal K arrhythmias
An autoimmune disease, whereby the body’s immune system reacts against its own cells, in this case the insulin producing cells in the pancreas, and begins to kill these cells.
Type 1 Diabetes
Normal Vs DMT1: function
Normal: Islet cells make insulin, insulin eats glucose, glucose used by body for many things
DMT1: Islet cells destroyed (by autoimmune), excess glucose without carrier, body does not get sugar
Diabetes Complications
Damage/disease of:
- Heart/blood vessels
- Nerves
- Kidneys
- Eyes
- Feet
- Pregnancy
A serious diabetes complication where the body produces excess blood acids (ketones).
Diabetic Ketoacidosis (DKA)
Mechanism by which DKA occurs
- Muscle unable to use excess glucose
- Sugar broken down into glycogen and proteins
- Ketoacidosis
How high is sugar in DKA?
Usually 250+ but not as high as in HHS
Indicators of DKA
- Usually BS 250+ (not as high as in HHS)
2. ketones in urine
Chronic insulin resistance condition that affects the way the body processes BS
The body either doesn’t produce enough insulin, or it resists insulin.
Diabetes Type II (DMT2)
Normal vs DMT2: process
Normal: Islet cells make insulin, insulin eats glucose, glucose used by body for many things
DMT1: Islet cells intact, sufficient insulin but it is resisted and not taken up by BS, increased BS that cant be used by muscle b/c its not attached to insulin
What causes DMT2?
- Obesity
2. Inheritance
Complications of DMT2
- CAD
- PAV
- Renal disease
- Eye problems
- GI problems
A metabolic complication of DM (usually DMT2) characterized by severe hyperglycemia, extreme dehydration, hyperosmolar plasma, and altered consciousness.
Hyperosmolar hyperglycemic state (HHS)
What sets HHS apart from DKA?
- Higher BS (600+)
2. No ketones in urine
Other names for HHS
- HHNC-Hyperosmolar Hyperglycemic Nonketotic Coma
- HHNS-Hyperosmolar Hyperglycemic Nonketotic State
- HHNK-Hyperosmolar Hyperglycemic Non-Ketotic
A cluster of conditions that occur together, increasing your risk of heart disease, stroke and type 2 diabetes.
Metabolic Syndrome
What are the 5 defining features of metabolic Syndrome?
- Visceral obesity
- Insulin resistance
- HTN
- High triglycerides
- Low HDL- cholesterol
- Visceral obesity
- Insulin resistance
- HTN
- High triglycerides
- Low HDL- cholesterol
What are the 5 defining features of metabolic Syndrome?
What is a further complication of Metabolic Syndrome?
DMT2
What test can be done to define Metabolic Syndrome?
FBS or glucose tolerance test
A form of high blood sugar affecting pregnant women.
Gestational Diabetes
Symptoms of Gestational Diabetes
Often no symptoms
How to diagnose Gestational Diabetes
Blood sugar test
What causes Gestational Diabetes?
Placental hormones
How can Gestational Diabetes effect baby?
- High BS in mother
- Brings BS to baby
- Overweight baby
How can Gestational Diabetes effect a women after pregnancy?
More prone to DMT2 later in life.