Endocrine Treatments Flashcards
Tx for Grave’s disease
- Thioamides: Methimazole and PTU (less common)
- Radioiodine
- BBs–propranolol
- Procedural tx–thyroidectomy, ablation of gland
- Opthalmology: glucocorticoids
TX for thyroid storm
Propylthiouracil (PTU) is the antithyroid DOC \+ IV fluids \+ Propranolol 1-2 Mg IV \+ Iodine SSKI potassium iodide drops \+ Glucocorticoids--hydrocortisone 100mg IV \+ anti-pyretics for fever-- avoid ASA
Tx for toxic adenoma of thyroid
- radioactive iodine ablation
2. Surgery
TX for Transien Hypothyroidism or Subacute Thyroidits
Supportive
- NSAIDs or ASA for pain and inflammation
- **most cases self limiting—95% return to euthyroid state
TX for TSH secreting Pituitary Adenoma
**test of choice for this??
TOC=pituitary MRI
TX:
- Radioactive iodine albation
- PTU or methimazole
definitive tx* transsphenoidal resection
Tx for Suppurative Thyroiditis
ABX
*if fluctunat– I/D
Tx for Hashimoto
Contraindications? /
Levothyroxine–synthroid–synthetic T4
CONTRA: acute MI, tx for obesity and uncontrolled HTN
what do you always do before starting tx for hypothyroidism?
-monitoring schedule?
-obtain a baseline of free T4, TSH, LFT, CBC
Monitoring: repeat labs after 4-6 wks of tx and 4-6 wks after any adjustmnets in dosing
tx for cretinism
life long levothyroxine
Tx for subclinical hypothyroidism
no tx
just monitor TSH levels
If Patients TSH levels are low—how do you manage their levothyroxine dose?
*same question for if the TSH was high
Low tsh—lower the dose (indicating hyperT)
high TSH—increase dose of levothyroxine (indicating hypoT is still present)
Tx for hypopituitarism
- hormone replacement
2. fix underlying cause of the hypopituitarism
tx for euthyroid sick syndrome
none— consult endocrine
**management is focused on treating the systemic illness
tx for myxedema coma
IV levothyroxine
Supp. care–ICU admission, IV fluids, passive warming, IV glucocorticoids,
adv effects from levothyroxine tx
Mi
osteopenia
HA
Tx for silent thyroiditis aka post partum thyroiditis
nothing *self limiting *euthyroid w/in 8-12 MOs *symptomatic--like BBs NOO anti-thyroid meds
Tx for primary hyperaldosteronism
A: if caused by bilateral adrenal hyperplasia
- Na+ restricted diet
- spironolocatone or eplerenone
- ACEI and/or BBs
B: if caused by aldosterone secreting adrenaoadenoma
- spironolactone
- surgical removal of the tumor
Tx for Addison’s disease
GLucocorticoid replacement with Hydrocortisone
Mineralcorticoid replacement with Fludrocortisone
TX for Acute Adrenal Insuff aka Addisonians Crisis
- IV isotonic (crystaloid) fluids (NSS or D5N5)
AND - IV hydrocortisone—- for known addisonian PT
or - IV dexamethasone–for unknown diagnosed addisonian PT
- fix any electrolyte abnormalities
- fludrocortisone if necessary
TX for Cushing’s Syndrome
If due to exogenous—gradual taper of corticoidsteroids–GRADUAL in order to prevent Addisonians Crisis
- If due to Cushing’s DZ: Transphenoidal resection to remove pituitary tumor
* if cannot opperate administer*:
- Mifepristone: glucocorticoid rec antagonist
- Radiation therapy or Pasireotide–somatostatin analogue - Adrenal tumor: tumor excision
- Ectopic Tumor: Resection if possible–If UNresectable… administer
-Ketoconazole–antifungal
or
-Metyrapone–Adrenal Steroid Synthesis Inhibitor.
Tx for pheochromocytoma
*need to initiate pharmacotherapy before surgery
- Nonselective alpha blockade is best initial tx
- PHEnoxybenzamine or PHEntolamine
* administer 1-2 wks before surgery
what medical therapy do we not want to initiate for a pheochromocytoma patient?
BETA blockade—– it can cause severe HTN crisis due to inititating alpha constriction during catecholamine release triggers by surgery or spontaneously.
Then: definitie management is complete adrenalectomy
why do we never give BB alone to tx pheochromocytoma
the BB will block the vasodilation affect of the beta blockers—but the alpha receptors will still be stimulated by pheochromocytoma’s epinephrine—- leading to HTN crisis
***why ALPHA antagonists are given
Tx for TSh secreting pituitary adenoma
transphenoidal surgery–definitive management
*somatostatin analogs may be used prior to surgery to restore euthyrodism
TX for Papillary Thyroid Carcinoma
Thyroidectomy–subtotal or total
-post-op Levothyroxine given–to replace and supress tumor regrowth
- post surgery radioiodine in some PTs
- post-tx: may monitor thyroglobulin levels, TSH, and US of neck
Tx for Follicular thyroid carcinoma
Thyroidectomy–subtotal or total
-post-op Levothyroxine given–to replace and supress tumor regrowth
- post surgery radioiodine in some PTs
- post-tx: may monitor thyroglobulin levels, TSH, and US of neck
Tx of medullary thyroid carcinoma
TOTAL thyroidectomy
- very poor prognosis
- calcitonin levels are used to monitor for recurrence or residual disease
Tx for anaplastic thyroid carcinoma
Most cases cannot be surgically resected
- tx is PALLIATIVE:
- tracheostomy may be needed to maintain airway
- PEG feeding tube
*Can try chemo or external beam radiation
Tx for Men Type 1
Tumor specific (according to PPP)
Tx for MEN type 2
surgical resection of ALL tumors
best initial test for papillary thyroid CA?
US
best definitive test for papillary thyroid CA?
FNA
what is the second MC type of thyroid CA
follicular thyroid carcinoma
which is slower growing— papillary or follicular
follicular
where does foliclar like to met?
bones
CNS
lungs
MC age of onset for follicular thyroid CA
40-60
diagnosis at 50+——>pooer prognosis
which CA is derived from calictonin synthesiznig parafollicular cells
medullary thyroid CA
10% of all cases of medulary thyroid CA are aossic with
MENIIa or MEN IIb
what drug is medullary thyroid CA associated with
GLP antagonists
what thyroid CA does not take up radioactive iodine?
medullary thyroid CA
rock hard thyroid mass?
anaplastic thyroid CA
tx for DKA
S----saline I---insulin--regular P---potassium replacement S---search for underlying cause *bicarb too
why do we give K+ replacement for DKA?
because insulin naturally drives K+ into the cell…. so when we give exogenous insulin the K+ levels will FALL– so we need to avoid that by giving exogenous K+ replacement
*and bc the PT is super dehydrated
In determining the severtiy of DKA– monitoring what levels is imp?
bicarb levels More IMP than monitoring glucose levels
**closing the anion gap determines complete management*
first hour of DKA management, what kind of saline solution do we give
1 L of 0.9% NSS to re-expand contracted vascular tone
AND
rehydrate
when BGL falls to around ____ mg/Dl.. we use ______ solutions to maintain blood glucose
250
D5 glucose solutions
when do we administer bicarb to the DKA patient
lab value
when pH is below 7.0 or less
*keep giving until arterial PH reaches 7.1
which saline solution do we NOT want to mix bicarb with?
NSS 0.9% bc that makse a hypertonic soln
what solution of saline do we mix bicarb with
1L of 0.45% saline
who do we NOT give K+ replacement to
Pts on dialysis or with CKD
when K+ levels fall below______ K+ replacement recc
> 5.3
initial TX for DM2
diet
exercise
Life style mod
when do you incorporate antihyperglycemic PO meds in DM2
-what is the initial PO drug to use
if PT unable to control glucose with Life style mod
metformin
how does metformin work
decreases hepatic glucose production and increases peripheral glucose uptake
what are the glucose goals and managment for DM2
- A1C
- Preprandial glucose b/w?
- postprandial glucose under?
- BP?
- under 7.0%–check evry 3 months
- 80-110
- <140
- target is <130/80
who should be taking statins?
DM patients who are b/w 40-75 YO with LDL levels of 70-189 but without clinical ASCVD
who is contradinicated for metformin and WHY
DM with chronic renal failure
metforming MOA *inhibits gluconeogenesis in liver–>making the body use fat as fuel–wt loss! But we make ketones–which affect kidneys-so we cannot give to somene with weak kidneys
TX for HHS
S— saline solution– rehydrate
I—insulin (regular)
P—K+ supplementation
S—search for underlying cause
tx for acromegaly or gigantism
tx for refractory?
THREE PRONG APPROACH
- stop the hypersecretion
- transsphenoidal surgery - Preserve pituitary function
- FIRSST LINE: Octreotide or Lanreortide–they are synthethic hormones mimicking/same as somatostatin (which inhibits GH)
- SECOND: Cabergoline or Bromocriptine–dopamine agonists— BC dopaine also inhibs GH**
- third line: Pegvisomant–GH receptor antagonist that inhibits IGF-1 release - ameliorate comorbidities
**radiation tx is reserved for refractory cases
tx for cortiocotroph adenoma aka cushings disease
transsphenoidal resection TOC
TX for hyperprolactinemia
Bromocriptine or Cabergoline (bc dopamine inhibs prolactin)
surgical removal of the tumor
Tx for central DI
1st?
2dn?
Desmopressin–is a synthetic ADH (DDAVP) first line–intranasal injection or PO
second line: carbamazepine second line
Tx for SIADH
mild:
moderate-severe:
severe w/ obtundation (severe hyponatremia):
chronic:
- treat underlying cause*
mild: fluid restriction po (ex: under 800 mg-1L daily)
moderate-severe: ADH receptor antagonists–Convipatan or Tolvaptan
severe w/ obtundation (severe hyponatremia): IV HYPERtonic saline + furosemide
***do not give too fast bc can cause central pontine myelinolysis
chronic: Demeclocycline—inhibits ADH
–vaptans in tx for?
SIADH
*ADH receptor antagonists
TX for hyPOcalcemia
mild
severe or sympto
mild: oral CA + Vit D supplements
* may need K+ and Mag too
Severe or symptomatic: IV calcium gluconate or IV calcium carobonate
TX for Hypercalcemia
- mild
- moderate-severe
mild:
- no immedaite tx needed— treat underlying cuase and increase water intake (bc this will promote CA excretion)
Mod-severe:
-IV fluids is INITIAL management–this promotes excretion
- IV loop diuretics–Furosemide to further promote excretion
- Calcitonin can be helpful adjunct in malignancy *fast onset of action than Bisphosphonates
- Bisphosphonates–>Zoledronic acid or Pamidronate can be given with calcitonin in malignancy
- Denosumab–>helpful adjunct in malignancy
- Glucocorticoids–>for granulomatous disease
tx for hyerparathyroidism
Parathyroidectomy definitive managment
vit d and Ca supplements post surgery
Cinacalcet inhibits release of PTH in PTs that are not candidates for surgery
Mild cases can just be observed
if severe CA develops–IV fluids and fureosemide
Tx for hypoparathyroidism
Calcium supplementation + activated Vit D (calcitriol)
acute symptomatic–>IV calcium gluconate