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INTERNAL MED IP/OP > ENDO > Flashcards

ENDO Flashcards

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1
Q

What regulates Ca homeostasis?

A

Parathyroid hormone

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2
Q

What stimulates the release of PTH?

A

Low Ca levels

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3
Q

What can often occur after having neck surgery or surgery for thyroid cancer?

A

Hypoparathyroidism

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4
Q

If a pt is having significant muscle spasm, paresthesia, and tetany -dx?

A

Hypoparathyroidism

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5
Q

What two things can you look for on PE for hypoparathyroidism?

A

Chvostek sign (tapping on the face that causes facial twitching), or trousseau sign (inflating the BP cuff causes tetany)

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6
Q

How do you dx hypoparathyroidism?

A

Decreased PTH, Serum Ca, and increased Phosphorus

EKG – prolonged QT interval

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7
Q

How do you treat hypoparathyroidism?

A

replace Ca and Vit D, check Mg

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8
Q

If you elevated PTH and serum Ca, and low phosphate – dx?

A

HYperparathyroidism

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9
Q

What is the MC cause hyperparathyroidism?

A

Single parathyroid gland adenoma

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10
Q

If a pt has renal stones, nausea, constipation, and decreased bone mineral density – dx?

A

Hyperaparthyroidism

“Bones, stones, and groans”

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11
Q

What will you see on EKG with hyperparathyroidism?

A

short QT interval

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12
Q

If PTH is low with elevated Ca – dx?

A

Need to think of other causes (aka malignancy)

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13
Q

How do you treat hyperparathyroidism?

A

Surgery for symptomatic patients

Asymptomatic + serum Ca over 1.0, reduced CrCl, osteoporosis, and under 50 – go to surgery

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14
Q

What type of symptoms would we see in a pt with hyperparathyroidism?

A

proximal muscle weakness, gait disturbance, atrophy, and hyperreflexia

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15
Q

What would secondary hyperparathyroidism be caused from? Tx?

A

Chronic renal failure and Vit D deficiency

Tx – Replace Vit D or dietary phosphate restriction

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16
Q

How do we treat acute hypercalcemic crisis?

A

IV hydration and bisphosphonates, furosemide can help calcium excretion

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17
Q

What’s more common, hyper or hypothyroidism?

A

Hypothyroidism

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18
Q

Hashimoto’s is associated with what?

A

Hypothyroidism

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19
Q

What is grave’s disease associated with?

A

Hyperthyroidism

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20
Q

If a pt has constipation, weight gain, fatigue, hair loss, and cold intolerance – dx?

A

Hypothyroidism

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21
Q

What would the labs show for hypothyroidism?

A 
TSH = High
T4 = Low
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22
Q

How do we treat hypothyroidism?

A

Levothyroxine (take on an empty stomach and wait 4 hours before taking Ca or Fe)

Levothyroxine replaces T4 (which is then converted to T3)

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23
Q

What else could cause hypothyroidism?

A

Iodine deficient diet, lithium!, and amiodarone

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24
Q

What are the causes of hyperthyroidism?

A

Grave’s Dz (autoimmune that leads to TSH receptor antibodies)

Subacute Thyroiditis = post-infectious, tender thyroid

Silent thyroiditis = occurs post-partum

Toxic nodular goiter – nodular felt on exam

Pituitary adenoma – nothing in particular in Hx or exam

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25
What’s the most common cause of a painful thyroid?
Subacute thyroiditis               Also suppurative thyroiditis (rare) MC caused by staph aureus
26
If a pt has heat intolerance, weight loss, palpitations, hyper defication, and anxiety – dx?
Hyperthyroidism
27
What is thyrotoxicosis?
excess circulating T3 and T4
28
What sxs are more specific to Graves dz?
Upper eyelid retraction, lid lag with downward gaze, protrusion and buldging og the eyes
29
What will the labs look like with hyperthyroidism?
TSH – suppressed               T3 and T4 – elevated
30
What if free T3 is also elevated, along with T4, and TSH is suppressed – what should you do?
Pituitary adenoma – get an MRI 
31
How do you treat a thyroid storm?
PTU or methimazole
32
How do you treat an adenoma?
surgical resection
33
How do we treat the palpitations in someone with hyperthyroidism?
Propranolol
34
How do you treat someone who is preggo with hyperthyroidism?
PTU in 1st tri, methimazole in 2nd and 3rd
35
What’s the definitive treatment for hyperthyroidism?
Radioactive iodine – used if prior PTU or MMI failure * Methimazole can lead to leukopenia/agranulocytosis * PTU can cause hepatotoxicity
36
After any thyroid medication is initiated, when so we re-check TSH levels?
4-6 weeks
37
A pt presents with a fixed hard mass in the throat, cervical lymphadenopathy, and vocal cord paralysis -dx?
Thyroid cancer
38
What’s a risk factor for thyroid cancer?
Childhood head and neck irradiation
39
How do you move forward with a thyroid nodule?
Always draw a TSH |               Do a U/S
40
What If a pt has a thyroid nodule and the TSH is low, what do you do?
Do a radionucleotide iodine uptake scan Non-functioning (cold)  BIOPSY Hyper-functioning (warm)  serial ultrasounds
41
When should we always biopsy a thyroid nodule?
Solid nodule greater than 1 cm               Cystic nodule greater than 2cm
42
What are some of the risk factors to Type 2 diabetes?
Over the age of 45, BMI greater than 25, DM in a 1st degree relative, sedentary lifestyle, gestational DM, Hx of delivering a child 9lbs or heavier, dyslipidemia, PCOS
43
When do we screen for diabetes?      
Aged 40-70 with BMI greater than 25, every 3 years
44
What would indicate diabetes?
Fasting glucose greater than 126 or One glucose greater than 200 or HA1c greater than 6.5 or Positive 2-hr oral glucose tolerance test
45
Give an example and time frame for a rapid acting insulin:
Rapid Acting – lispro, aspart, glulisine (onset 5-15 min; peak 1 hr; lasts 4 hours)
46
Give an example and time frame for a fast acting insulin:
Fast Acting – Regular (onset 30-60mins, peaks 2 hours, last 6 hours)
47
Give an example and time frame for a Intermediate acting insulin:
Intermediate – NPH – onset 2 hours, peak 6 hours, lasts 14 hours
48
Give an example and time frame for a Long-acting insulin:
Long-acting – glargine (onset 1-2 hours, no peak, lasts 24 hours)
49
Where do we start when someone is pre-diabetic or has a slightly positive A1c?
Weight loss, proper nutrition, and exercise
50
What is first line medication for diabetes?
Metformin
51
What can we add if Metformin is not enough?
Sulfonylureas (glipizide and glyburide)
52
If oral’s aren’t working to control diabetes, then what?
Basal insulin, can add an rapid acting as well
53
If an A1c is greater than 9%, what do we do?
They must start insulin
54
What should a diabetic have done yearly?
Eye exam, urine for microalbumin, LDL (statin), BP less than 140/90 (ACE or ARB first line), ASA if 10 year risk is greater than 10% or greater than 30 years of age
55
What are some of the risk factors to hypercholesterolemia?
HTN, Smoking, DM, obesity, age over 45 (males; 65 for females), and Family Hx
56
How and when do we screen for hypercholesterolemia?
HDL, LDL, total cholesterol, and trigs               High risk males over 25 and females over 35               Non-high risk males over 35 and females over 45
57
How do we treat hypercholesterolemia?
Diet, exercise, weight loss, and no tobacco products               LDL is greater than 190 = high statin DM ages 40-75 with LDL between 70-180 = moderate statin CVD or DM w/ LDL between 70-189 and a 10year risk of atherosclerotic dz >7.5% = moderate to high statin
58
Why would we treat hypertriglyceridemia?
To reduce CV risk               If levels are greater than 1,000 pts at risk of pancreatitis               Use Niacin, Fibric Acids (Gemfibrazil or Fenofibrate), Fish Oil
59
What is occurring in diabetes insipidus?
ADH is not made or does not work
60
High intensity statins decrease LDL’s by how much?
50%
61
Moderate intensity statins should decrease LDL’s by how much?
30-49%
62
A healthy diabetic pt that is 65 or older should have a goal A1c of what?
7.5% or under
63
; A complex diabetic pt that is 65 or older should have a goal A1c of what?
8% or under
64
A very complex diabetic pt that is 65 or older should have a goal A1c of what?
8.5% or under
65
What’s a target BG before eating?
80-130
66
What’s a target BG 2 hours after eating?
less than 180
67
What’s a target bedtime BG?
100-140
68
What would be a weightloss of concern in an elderly patient?
more than 2% in 1 month, 10lbs in 6 months, or greater than 4% in a year

INTERNAL MED IP/OP (9 decks)

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