Deck 1 Flashcards
When in doubt about whether to immunize someone,
Better to give an extra vaccine dose than to give none. Risk of reaction with re-immunization is minimal.
When should you defer an immunization and when should you not defer?
Immunization should only be deferred if there’s a moderate to severe illness (with or without fever). For minor illness, you should still immunize.
What is the onset and duration of most immunizations (active immunity)
Onset is about a month, it lasts for years
What is passive immunity and when is it used
It’s when you directly give someone antibodies. It’s used post-exposure for certain infections (so the patient has to have a recent risk of exposure)
What is the onset and duration of passive immunity
Onset is a few hours, usually lasts 6 to 9 months
What are some infections we can treat with passive immunity
Varicella, Hep A, Hep B, tetanus, rabies
Herpes Zoster Vaccine (4 things)
Prevents herpes zoster (shingles) in adults aged 50 years and older.
Give 1 dose, then 2 to 6 months later, give another dose.
Can be given to immunosuppressed people.
If they have already received the live zoster vaccine, still give this one.
How to calculate packs per day years
2 packs per day for 30 years
2 PPD x 30 years = 60 pack year history
CAGE for other substances
Change the “E” to an “N”
Have you ever needed heroine to feel normal (not be in withdrawal)
CAGE scoring
2 or more “Yes’ “ means they almost definitely have substance abuse disorder
For all ages, what is the leading cause of death, and what is the 10th leading cause
Heart disease, suicide
Prostate screening recommendations
55 to 69 years old: Should be a case by case decision.
70 and older: Do not screen
Breast cancer Genetic Counseling recommendations
If they have certain risk factors, especially the BRCA 1 and 2 gene, screen them with the assessment tool. Based on the tool, you may need to do genetic testing.
If they don’t have the BRCA 1 and 2, do not screen routinely
Colorectal cancer
Screen from 45 to 75.
From 76 to 85 the decision is case by case.
Fecal Occult- yearly
DNA test- 1 to 3 years
Sigmoidoscopy- 5 years
CT colonoscopy- 5 years
Colonoscopy- 10 years
Lung cancer screening
CT scan for people 55 to 80 years old with a 30 pack-year history, who currently smoke or quit within the past 15 years.
Stop screening if they quit for more than 15 years or if they have another illness that limits their life expectancy anyway
Breast Cancer Screening
Age 40 to 45: Woman’s choice
45 to 54: Annual mammogram
54 to whenever they still have a life expectancy of 10 years: Biennially
Or
50 to 74: Biennially
BSE is not encouraged nor discouraged
Cervical Cancer
Do not screen before 21
Sensitivity
Likelihood of being sensitive enough to find a true positive
Specificity
Specific enough to know which is a true negative
Aspartate aminotransferase (AST) measures
damage to the liver
Aspartate aminotransferase (AST) findings
Can be elevated in valproate therapy, hepatitis, cirrhosis
Decreased in chronic alcoholic liver disease
Alanine aminotransferase (ALT) measures
liver damage
Alanine aminotransferase (ALT) findings
Can be elevated in valproate therapy, hepatitis, cirrhosis.
Deceased in chronic alcoholic liver disease.
y-Glutamyl transferase (GGT) measures
Cholestasis (flow of bile from the liver, either extrahepatic or intraheptatic)
y-Glutamyl transferase (GGT) findings
Can be elevated in alcohol abuse, chronic alcoholic liver disease
Alkaline phosphatase (ALP) measures
Cholestasis (flow of bile from the liver, either extrahepatic or intraheptatic)
Alkaline phosphatase (ALP) findings
Elevated in gallbladder disease, liver disease, bone injury, or rapid bone growth
Creatine kinase measures
muscle injury, it’s found in the brain, heart, and muscles
Creatine kinase findings
elevated in MI, myositis, vigorous exercise, neuroleptic malignant syndrome
Urea nitrogen (BUN) measures
Kidney functions
Urea nitrogen (BUN) findings
Elevated in impaired kidney function, significant dehydration
(Definitely check this during Li therapy!)
Creatinine measures
Kidney function. It’s a more specific measure than BUN
Glomerular Filtration Rate (GFR) measures what? What are 2 important parameters to know?
It’s the best measure of kidney function.
- Older people have 30% reduced filtration.
- If GFR is over 60, you don’t need to adjust the dose
Valproate therapeutic level
50 to 120
Valproate (and certain other AEDs, like carbamazepine) 10 recommended labs
ALT, AST, ALP, bilirubin, albumin, total protein CBC with WBC differential and platelet count, serum hCG, and valproate level.
Schedule:
- Baseline
- Monthly for a few months
- 6 to 24 months
The patient is on valproate. What might you find on the liver panel
Elevated ALT and AST are common.
Usually happens in the first 6 months, especially with children.
The values will return to normal when the medication is discontinued.
What lab values tell you that you should discontinue valproate?
AST/ALT elevations more than 2 to 3 times the upper limit
For patients taking valproate, teach the patient to report symptoms of liver dysfunction such as,
abd pain, nausea, vomiting, and jaundice
Liver failure with valproate
It’s rare.
Usually happens in children under 10, development disability, or with major seizure disorder
Valproate hematologic considerations
- Thrombocytopenia and neutropenia are the most common
- Consider discontinuing if there is bone marrow depression
- Tell patient to report signs of dysfunction like bruising, bleeding, slow healing, fever)
Valproate and Steven Johnson
Rare
Carbamazepine and Steven Johnson
Increased risk in Asians/Indians with a certain allele
Genetic testing before starting Carbamazepine
Recommended for Asians/Indians to check if they have an allele that increases risk for SJS
What are the 10 initial labs recommended for Lithium
Kidney (BUN, creatinine, GFR) TSH Electrolytes CBC with WBC differential, hCG Urinalysis
EKG
Li level every 4 days
What are the 8 long-term labs recommended with Li
Kidney (BUN, Creatinine, GFR)
TSH
CBC
Urinalysis
EKG over age 50, q 6 to 12 months
Li level q 1 to 2 months or 6 to 12 months depending on patient
Li target levels
.8 to 1.2 for acute
.6 to 1 for maintenance
3 contraindication for Li
Acute renal failure
Severe dehydration
Sodium depletion
Li is NOT contraindicated in these kidney conditions:
Chronic stable kidney disease
kidney transplant
A patient with stable/chronic kidney disease or a kidney transplant is on Li. What lab tells you to reduce the Li dose?
Reduce is GFR is less than 60
3 important states that effect Li level
Dehydration increases Li
Decreased sodium increases Li
Increased sodium decreases Li
Li toxicity can begin at __ but more likely won’t occur until __
1.5
>2
Li toxicity: Worsening ___ symptoms correspond to the highest Li levels
neurologic
Is Li toxicity a medical emergency
Yes. Duh.
Li toxicity symptoms
Lethargy, fatigue, clumsiness, weakness, cramping, N/V, severe tremor, blurred vision, confusion
Li toxicity signs
Nystagmus, ataxia, increased DTR, AMS, arrhythmias
Meds that can increase Li level
ACE inhibitors, angiotensin II receptor blockers, NSAIDS
Tetracyclines, metronidazole
K-sparing diuretics, thiazide diuretics
(none are contraindicated though)
Meds that can decrease Li
Theophylline
not contraindicated though
Meds that can either increase or decrease Li (unpredictable)
Loop diuretics
CCBs
(none are contraindicated though)
Other Effects of Li (renal, cardiac, thyroid, neuro, general)
renal, Polyuria, polydipsia
cardiac, rare but conduction problems can happens
thyroid, hypofunction and goiter
neuro, fine tremor
general, weight gain
Clozapine: absolute neutrophil count must be ___ to start therapy
1500 or greater
Clozapine: treatment should be stopped if ANC is
less than 1000