NUS 111 Test #3 Flashcards
this releases thyroid stimulating hormone
pituitary gland
iodine is needed to synthesize these
T3 and T4
what does the thyroid gland affect
metabolic rate, growth and developement, brain function and metabolism
decreased basal metabolic rate creating weight gain, supresses glucose
hypothyroidism
weight loss, caloric requirement goes up; graves disease causes 75% of this
hyperthyroidism
this is caused by the destruction of the thyroid gland and/or defect in the production of hormones
hypothyroidism
decreased production of ____ leads to the stimulation of the secretion of _____ which stimulates the secretion of T3
T4
TSH
T3 increases the secretion of _____ which leads to the hypertrophy of the thyroid gland
T4
what is transient hypothyroidsm
temporary/reversible
waht is primary hypothyroidism
disfunction of thyroid gland itself; or not enough iodine
this is thyroid deficiency is present at b irth
cretinism
drugs for hypothyroidism
lithium
what is the most common cause of hypothyroidism in the world
iodine deficiency
modifiable risk of hypothyroidism - 2
use of lithium
diet iodine deficiency
Non modifiable risk factors of hypothyroidism - 6
age, 30-60 yrs old
genetics
autoimmune disease
females
hyperthyroidism, part of thyroid removed, meds for hyperthyroid at any point, head or neck radiation
old ppl considerations for hypothyroidism - 6
depression
decreased mobility
presents atypically*
constipation
thyroid replacement therapy
CV & neurologic side effects with thyroid replacement therapy
early symptoms of hypothyroidism - 8
- fatigue
- amenorrhea
- loss of libido
- non pitting edema
- mental sluggishness
- parasthesia and nerve entrapment syndrome
- hair loss, dry skin, brittle nails
- constipation
late symptoms of hypothyroidism - 10
- slow speech
- cold intolerance
- subdued emotional response,
- apathy
- absence of sweating
- constipation
- thickening of skin
- dyspnea
- weight gain (without increase in food consumption)
- thinning of hair, alopecia (Severe)
severe hypothyroidism resulting in decompensated metabolic state and mental status change
myxedema coma
what part of myxedema coma is pt a medical emergency
enlarged tongue
depressed resp drive
advanced stage of hypothyroidism
personality and congnitive changes - looks like dementia
respiratory issues:
-muscle weakness
-pleural effusion
-sleep apnea
severe stage of hypothyroidism
elevated level of serum cholesterol
CAD/ Poor left ventricular function
myxedema coma
-hypothermic
-Lethargy/unconscious /coma
-Non pitting and periorbital edema
-Enlarged tongue (hoarseness)
-Depressed respiratory drive
how do you manage myxedema coma
- supportive (airway, rewarming)
- hydrocortisone
- levothyroxine, T4
- +/- T3 supllementation
what are the laboratory findings for myxedema coma
hypoglycemia
hyponatremia
hypoxemia
prolonged QT, low voltage
pericardial effusion
hypercapnia
precipitating factors of myxedema comma
infection, cold exposure, stroke, meds (amiodarone, lithium)
nursing assessments - hypothyroidism
vitals - low pulse, bp, RR is tachy
palpate thyroid - is it enlarged, soft, rubbery
skin changes
constipation
weight gain
hair loss, brittle nails
how tolerate cold
cardiac function
assess mouth for enlarged tongue
slurred speech
dyspnea
numbness/tingling
nursing interventions for hypothyroidism
nutritional support - iodine, risk for weight gain healthy diet
assess for signs of myxedema, LOC, CV changes, sedatives/opioids - avoid
teach pt -
1. dont switch brands without talking to provider
2. take meds 1-2 hours before breakfast
3. how to manage symptoms
4. mild soap, use lotion, avoid skin breakdown
5. constipation, stool softener, increase fiber
medication for hypothyroidism
levothyroxine
what are the considerations for levothyroxine
benzos & sedatives - can cause myxedema coma
anticoagulants - watch for bleeding, increased risk
insulin - may need more
digoxin - can cause angina & arrhythmias
dilantin - decreases effect
tricyclic antidepressant - effects decreased
should levels of TSH be low or high for hypothyroidism
high if thyroid issue
low if pituitary or hypothalamus
hypothyroidism
low or high T3
low
hypothyroidism
low or high T4
low
hypothyroidism
low or high LDL
high
hypothyroidism
low or high anemia
low
hypothyroidism
low or high hemoglobin
low
BMR - hypothyroidism low or high
low
safety measures for hypothyroidism
- chest pain
- HR over 100
- medications
- supportive management; education, oral and written instructions if needed
- monitoring physical status; CV collapse; respiratory issues
collaborative goals for hypothyroidism
-adhere lifelong therapy
-weight reduction
-monitor thyroid hormones, keep within normal range
-report herbal and OTC meds to provider
modifiable risks of hyperthyroid
smoking
overmedication
too much iodine
diet meds
non modifiable risks of hyperthyroid
graves disease
female
cancer, thyroid, pituitary
20-40 year old
raidation
thyroiditis
non modifiable risks of hyperthyroid
graves disease
female
cancer- thyroid, pituitary
20-40 years
radiation
thyroiditis
when the thyroid gland makes too much T3 and T4 so pituitary gland will not produce TSH
hyperthyroidism
this is the clinical effects of hyper metabolism from too much circulation T3 & T4
thyrotoxicosis
this is associated with goiter
thyrotoxicosis
hyperthyroidism for old ppl - considerations
- unexplained weight loss
- isolated episodes of atrial fibrillation
- less common in elderly
- new or worsening heart failure
- difficulty climbing stairs when it wasnt before
- mental deterioration
- may need beta blockers
symptoms of thyroid storm (Thyrotoxic crisis)
high fever
agitation
delirium
congestive heart failure
loss of consciousness
nursing assessments for hyperthyroidism
vital signs
thyroid gland - enlarged, soft, thrill-palpable pulse
respiratory - watch for airway, possible stridor, resp distress, difficulty swallowing
peripheral edema
tachycardia
dyspnea; crackles; jugular vein distention
nursing intervention for hyperthyroidism
high calorie diet - 4000-5000
avoid stimulants
low fiber food
peristalsis increases risk for diarrhea
cool environment
monitor for thyrotoxic crisis
already stimulated so avoid; nicotine, caffeine, soda, alcohol
clinical manifestations of hyperthyroidism
exophthalmos - bulging/buggy eyes
nervousness/ emotionally excitable
Tremors
weight loss
Thinning of hair
high HR
palpitations
elevated systolic BP
hyperhidrosis
heat intolerance/Hyperthermia
itchy skin
Systolic murmur
increased peristalsis
increased appetite
muscle fatigue
these block synthesis of hormones
antithyroid meds
what are the antithyroid meds
PTU
methimazole
meds for hyperthyroid
antithyroid meds
adjunctive therapy
radioisotopes iodine
what is the priority during post op of a thyroidectomy
airway - assess airway every 2 hours for first 24 hours. high risk for airway issue
how much of thyroid is removed during thyroidectomy
5/6th
hyperthyroidism lab
TSH - high or low
low
hyperthyroidism lab
T3 - high or low
high
hyperthyroidism lab
T4 - high or low
high
hyperthyroidism lab
BMR - high or low
high
pt education for post treatment of thyroidectomy
see physician
2-3 mos before improvement of symptoms
continue meds as directed
monitor for a year closely for hypothyroid
education on diet
which system is activated causing hunger which activates the sympathetic nervous system
parasympathetic
this mimics alcohol intoxication early on
hypoglycemia
what are the risk factors of hypoglycemia
too little or delayed food intake
too much exercise
medication or food taken at right time
manifestations of hypoglycemia
hunger
shaking, nervous, anxious
diplopia
lethargic, weakness
slurring
faint, lightheadedness, syncope
nursing assessment hypoglycemia
blood glucose level
cold clammy skin
slurred speech
diaphoretic
tachycardia, palpitations
seizure, coma, loss of consciousness
unsteady walking, impaired coordination
nursing intervention of hypoglycemia
PB - carb + protein
eating snack at peak insulin time
medications for hypoglycemia
glucagon IM
50% dextrose IN
medical alert bracelet
collaborative safety goals - hypoglycemia
watch for signs and symptoms
watch for N & V
if pt is unconscious, treat blood sugar then once conscious give snack
this is a group of metabolic disease characterized by elevated blood glucose levels in the blood
diabetes
what do you have, if you have sweet urine
diabetes
what are the four types of diabetes
prediabetes
DM type 1
DM type 2
gestational diabetes
this is produced by the pancreas that controls blood glucose levels by regulating production, use and storage of glucose
insulin
in this type of diabetes - insufficient release, damage to pancreatic cells. not enough made. betas cells damaged or destroyed
type 1
deficient hormone signals - insulin resistance - which diabetes is this
type 2
what is the function of insulin
transports and metabolizes glucose for energy
signals to stop release of glucose
enhances storage of dietary fat
inhibits breakdown of glucose
facilitiates transport of K+ to cells
stimulates storage of glucose as glycogen in liver and muscle cells
characteristics of prediabetes
- impaired glucose intolerance
- not high enough numbers to be diabetes
- increased glucose levels
manifestations of metabolic syndrome
- hypertension
- high blood sugar
- abnormal cholesterol levels
- abdominal obesity
non modifiable risk factors of prediabetes
ethnicity - native americans, latinos
gestational diabetes - can develop to type 2 later in life
age 45 +
modifiable risk factors of prediabetes
weight
hypertension
sedentary lifestyle
HDL cholesterol level
primarily autoimmune - immune destruction of beta cells
type 1a diabetes
failure without an immune mediated etiology
type 1b
children and young adults mostly get this type of diabetes
type 1
nonmodifiable risk factors for type 1 diabetes
onset can occur at any age but usually under 30
genetics
exposure to virus
clinical manifestations for type 1 diabetes
polyuria
polydipsia
polyphagia
weight loss
vision changes
numbness/tingling in hands/feet
dehydration
priority assessment for type 1 diabetes
thin, below ideal body weight
slow wound healing
lethargic
eye exam
numbness/tingling in hands/feet
GI assessment, urinary assessment, skin assessment
CV assessment, tachycardia, hypotension
kussmaul breathing
sweet breath/urine
3 Ps
manifestations of diabetic ketoacidosis
feeling tired and sleepy
confusion, passing out
stomach pain, feeling sick
high ketones, polyuria
blurred vision
sweet smelling breath
polydipsia
high blood sugar levels
priority interventions for type 1 diabetes
assess and monitor blood glucose levels
educate on meal planning
urine glucose testing
educaton on exercise
educate on alcohol usage and its effects
educate on insulin choices and how to admin
reading food labels, carrying snacks with them at all times
pay attention to blood sugar when high
educate to know signs/symptoms of hyper and hypoglycemia
medications for type 1 diabetes - types of insulin
exogenous insulin admin
insulin pumps
insulin
-rapid - lispro
-short - regular insulin
-intermediate - NPH
-long acting - glargine/detemir
priority diagnostics of type 1 diabetes
fasting blood glucose levels
random glucose level
urine
hemoglobin A1C >6.5%
urinalysis
C peptide test
what age of population tends to get type 2 diabetes
older population
pathophysio of DM type 2
insulin resistance
impaired insulin secretion
b-cells become fatigued from compensatory overproduction of insulin
-don’t get ketosis
HHNS
impaired insulin secretion - type 2 diabetes
body tissues do not respond to action of insulin
DKA
gets ketosis
insulin resistance - type 2 diabetes
nonmodifiable risk factors - DM type 2
age 45
family history
ethnicity - minorities
gestational diabetes
modifiable risk factors -DM type 2
weight
smoking
sedentary lifestyle
HTN
high cholesterol
high blood sugar
clinical manifestations pf type 2 diabetes
fatigue
visual changes
slower onset
reoccuring infections
polyuria
polydipsia
polyphagia
prolonged wound healing
nursing assessment for type 2 diabetes
body mass index
measuring abdominal girth
skin assessment
CV assessment
numbness/tingling
cognition status