Blue Flags Flashcards
incidence
number of new cases/number of people at risk
prevalence
number of existing cases/total number of people in pulation
what does short disease duration do to incidence and prevalence
they should be roughly equal
what does long disease duration do to incidence and prevalence
prevalence increases over incidence because of the increased number of cases
type 1 error
false positive
type 2 error
false negative. related to the statistical power
t test
checks the difference between 2 means
ANOVA
checks the differences between the means of 3 or more groups
Chi-square
checks differences between 2 or more percentages or proportions or categorical outcomes
informed consent
disclosure of pertinent information, ability to comprehend the information, capacity o make own decisions, voluntary freedom from coercion, understand proposed treatment, outcomes, alternative options, risks and benefits
patient is non adherent
determine reason for non adherence and determine the willingness to change
desire unessecary procedure
understand why they want the procedure and address underlying concern, Do not reduce or refer to another
patient struggles to take medication
provide written instructions, attempt to simplify regiments, use teach back method
family members ask for information about prognosis
avoid discussing issues with relatives without the patients permission
family member asks physician to not disclose the results of the test if the prog is poor because the patient will not handle it well
attempt to identify why they think this information will be harmful to the patient. Explain that the patient has decision making capacity until there is communication otherwise
17 year old girl requests an abortion
require parental consent.
parents want girl to give up child of 15 yo pre girl
girl has rights about the child. discuss options if requested
terminally ill patent requests physician assisted suicide
refuse involvement of the physician but can prescribe medically appropriate analgesics that coincidentally shorten the patients life
patient is suicidal
assess the seriousness of the threat suggest the patient remain in the hospital and if not make them stay
patient thinks you’re attractive
ask direct, close ended questions and use a chaperone. NEVER DATE
a woman who had a mastectomy says she now feels ugly
find out why the patient feels this way
patient is angry about wait time
acknowledge the anger and do not take it personally. Do not explain the delay
patient is upset with how they were treated by another doctor
suggest that the patent speak directly to that physician directly about the concerns
an invasive test is performed on the wrong patient
inform the patient of the mistake
requires a treatment not covered by insarance
never delay or limit care based on this. Discuss all options even if they are not covered
a boy loses his sister and now feels responsible
5-7 year olds understand death is permanent and all life function is gone. Proved a direct concrete description of his sisters death. Normalize fear and feelings and encourage lay and healthy coping behavior
common causes of death by age- under 1
congenital malformations, Preterm birth, SIDS
common causes of death- 1-14 years
unintentional injury, cancer, congenital malformation
common cause of death 15-34 years
unintentional injury, suicide, homicide
common cause of death 35-44
unintentional injury, cancer, heart disease
common cause of death 45-64
cancer, heart disease, unintentional injury
common cause of death 65+
heart disease, cancer, COPD
hospital conditions with high readmission rate- medicare
congesitive HF, septic, pneumonia
hospital conditions with high readmission rate- medicaid
mood disorder, schizophrenia, DM
hospital conditions with high readmission rate- private insurance
chemo radiation, mood disorder, complications of surgery
hospital conditions with high readmission rate- uninsured
mood disorder, alcohol related, DM
delirium symptoms
waxing and waning level of consciousness with acute onset, rapid decrease in attention span and arousal. Disorganized thinking, hallucinations, altered sleep, cognitive dysfunction- slowing EEG
delirium causes
CNS disease, UTI, trauma, substance abuse, withdrawal, metabolic or electrolyte disturbance, hemorrhage, urinary or fecal retention. can be medication related in the elderly especially anticholinergics
delirium treatment+ what not to give
use haloperidol and treat underlying condition. Do not give benzos because this can worsen it in the elderly unless its for alcohol withdrawal
dementia
decreased intellectual function without affecting consciousness. Characteristic memory deficits, apraxia, aphasia, agnosia, loss of abstract thought, behavioral/personality changes, impaired judgement. Can develop delirium.
dementia causes- irreversible
AD, Lewy body dementia, HD, Pick, cerebral intact, Mad cow, chronic substance abuse
reversible causes of dementia
hypothyroid, dpression ,B12 def, NPH, neurosyphillus, hydrocephalus
EEG in delirium vs. dementia
Delirium has a diffuse slowing EEG and dementia has a normal EEG
major depression how long before diagnossi
need 2 weeks for symptoms
major depression treatment
CBT and SSRI
major depression symptoms
depressed mood, sleep disturbance, loss of interest, guilt or feelings of worthlessness, energy loss and fatigue, concentration problems, appetite/weight changes, psychomotor retardation or agitiation, suicidal ideations
depression sleep changes
decreased REM latency, decreased slow wave sleep, increased REM early in the cycle, increased REM overall, repeated nighttime awakening, early morning awakening
dysthymia
persistent depressive disorder- mild depression lasting at least two years
atypical depression
mood reactivity- able to cheer up, reversed vegetative, hypersomnia, hyperphageia, leaden paralysis, interpersonal rejection sensitivity
Cluster A
paranoid, schizoid, schizotypal
pervasive distrust and suscpiciousness; projection is the major defense mechanism
paranoid
voluntary withdrawal from social situations, limited emotional expression, content with social isolation
schizoid
eccentric appearance, odd beliefs, or magical thinking, awkward in relationships
schizotypal
Cluster B
antisocial, borderline, histrionic, narcissitic
cluster C
avoidant, OCPD, dependent
disregard for and violation of rights or others, criminality, M>F, goes by another name before the age of 18
antisocial
unstable mood and interpersonal relationships, impulsive, self-mutiliation, suicidal, sense of emptiness, splitting
borderline
excessive emotionality and excitability, attention seeking, sexually provocative, overly concerned with appearance
histrionic
grandiose, sense of entitlement, lacks empathy and requires excessive admiration, often demands the best and reacts with rage to criticism
narcissistic
hypersensitive to rejection, socially inhibited, timid, feelings of inadequacy, desires relationships with others
avoidant
preoccupation with order, perfectionism and control. behavior bothers others but not self
OCPD
submissive, clingy, excessive need to be taken care of, exceedingly low self-confidence
dependent
Fab region
fragment antigen binding- determines the unique antigen binding pocket only 1 antigen per B cell
Fc region
constant region, carboxy terminus, complement binding, carbohydrate side chains
Generation of antibody diversity
random recombination of VJ and D genes which are for the chains. The random addition of nucleotides to a DNA during recombination by terminal TDT determine this and then there is a random assignment of light chains to heavy chains
generation of antibody specificity
somatic hypermutation and affinity matuation- variable switching, isotype switching
what can antibodies do
prevent bacterial adherence (neutralization), opsonixation (promotion of phagocytosis), complement activation activates C3B and the mac complex
what antibody is the most abundant in the serum
IgG
what antibody fixes complement, crosses placenta, opsonizes bacteria, and neutralizes bacterial toxins and viruses
IgG
what antibody prevent attachment of bacteria and viruses to mucus membrane
IgA
what antibody is produced by the GI tract and protects against gut infecttions
IgA
what antibody is released into the secretions like tears, saliva, mucus and breast milk
IgA
what antibody is the first response to an antigen
IgM
what antibody fixes complement but does not cross the placenta
IgM
Pentamer antibody
IgM
what antibody is found on the surface of B cells
IgD
what antibody binds mast cells and basohils
IgE
what antibody cross links when exposed to allergen mediating the type I HSN through release of histamine
IgE
what antibody mediates defense against worms
IgE
recurrent bacterial and enteroviral infections like giardia and increased encapsulated infections. There are no B cells in the peripheral blood and decreased Ig of all classes. No tonsils or lymph nodes
defect in BTK which leads to no B cell maturation and X linked recessive called Bruton agammaglobulinemia
Airway and Gi infections with atopy, and autoimmune and anaphylaxis to blood products. Decreased IgA and normal others. Celiac is common. Recurrent sinus infections
selective IgA deficiency- must wash red blood cells
20-30 yo patient with increased autoimmune diseases, bronchiectasis, lymphoma, sinopulmonary infections. decreased plasma cells and decreased immunoglobulins
defect in B cell differntiation- Common variable immunodeficiency
Tetany, hypocalcemia, recurrent viral and fungal infections, conotruncal abnormalities like tetralogy of Fallot and truncus arteriosis. Decreased T cell and PTH, decreased Ca. absent thymic shadow,
Thymic aplasia like Digeorge. It is from 3 and 4 pharnygeal pouch failure
disseminated mycobacterial and fungal infections may present after administration of BCG (Tb vaccine), decreased IFN gamma, decreased Th1 response
IL12 deficiency
coarse facies, cold staph abscesses, retained primary teeth, increased IgE, dermatologic problems. decreased interferon gamma
deficiency of Th17 cells so impaired recruitment of neutrophils to sites of infections- autosomal dominant hyper IgE syndrome
noninvasive candida infections of the skin and mucous membranes. Absent invert T cell proliferation response
T cell dysfunction- chronic mucocutaneous candidiasis
failure to thrive, diarrhea, thrush, recurrent infections like PJP. treated with Bone marrow transplant. Decreased T cell receptor excision circles, absence of thymus shadow, no germinal centers, and no T cells.
SCID- defective IL2R gamma chain. Adenosine deaminsase deficiency
cerebellar defects, spider angiomas, IgA deficiency- increased AFP, decreased IGA, IGG, IGE. lymphopenia and cerebellar atrophy
defect in ATM gene- failure to repair DNA double strand breaks- arrest the cell cycle- Ataxia telangactasia
severe pyogenic infections early in life with opportunistic infections like PJP, cryptosporidium, and CMV. Normal IgM but decreased IgG, A, and E
defective CD40L on Th cells that impaired class switching- hyper IgM
Thrombocytopenia, eczema, recurrent infections, increased autoimmune disease- increased IgE and IGA but decreased G and M
WAS mutation so T cells are unable to reorganize actin cytoskeleton- Wiskott Aldrich
Recurrent bacterial skin and mucosal infections, absent pus formation, impaired wound healing, and delayed cord separation. increased neutrophils not in the infection site
Defect in LFa1 so impaired migration and chemotaxis and is autosomal recessive- Leukocyte adhesion deficiency
recurrent staph, strep, and albinish, peripheral neuropathy, progressive neurodegeneration, infiltrative lymphocytosis, griant granules in the granulocytes and platelets. pancytopenia, mild coagulation defects
Chediak Higashi Syndome
increased catalase positive infections- nocardia, pseudomonas, listeria, aspergillum, candida, icily, staph, serration, b coppice, h pylori- nitroblue is not reduces
chronic granulomatous disease from NADPH oxidase deficiency
deficiency leads to chalices with inflammation of lips scaling and fissures of the corners of the mouth and corneal vascularization-
B2 riboflavin
what does B2 do
component for redox reactions
deficiency of this leads to glossitis, severe leads to pellagra, with diarrhea, dementia, and dermatitis with broad collar rash with hyper pigmentation of the skin
niacin deficiency
what is Hartnup disease
AR recessive deficiency ot tryptophan and so there is aminoacidura and decreased gut absorption and this means decreased niacin
excess of this leads to facial flushing, hyperglycemia and hyperuriciemia
this is niacin
what can niacin trat
lower levels of VLDL and raises levels of HDL because its part of NAD and NADP
deficiency causes dermatitis, enteritis, alopecia, and adrenal insufficiency
this is from B5 or pantothenic acid
deficiency leads to convulstiona, hyper irritability, peripheral neuprpathy, sideroblasts dur to impaired hemoglobin- and causes
B6 deficiency- isoniazid and oral contraceptives
function of B6
used for NT
deficiency causes dermaittis, alopeica, enteritis- eats lots of egg whites
biotin of B7- ued for putuvate carboxylase, acetyl coz to alony coa, oropionyl coa and methylamolnyl coa
deficiency leads to macrocytic megalibalstic anemia, hyperhsegmented polymophonuclear cells, glossitis, no neurology symptoms. increased homocysteine. see in what two risk groups
folic acid or B9- seen in pregnancy and alcoholics
deficiency of microcytic and megaloblastic anemia, hypersegmented PMN< prothesis, subacute combined degeneration, corticospinal tracts, and abnormal myelin. increased homoystein and methylmalonic acid. Prolonged deficiency leads to nerve damage- what can cause it
stored in the liver and taken up in the terminal ileum, malabortiptio from sprue or enteritis, liver fluke, pernicious anemia, gastric bypass crowns or vegans
deficiency swollen gums, brusing, petichaie, hemarthorosis, anemai, poor wound healing, perifollicular and subperiosteal hemorrhages with corkscrew hairs
cannot hydroxylate proline and lysine for collagen synthesis- vitamin C
excess is vomiting, nausea, fatigue, calcium oxalate nephrolithiasis, and increased risk of iron toxicity
vitamin C
deficiency- rickets ostomalacia, and tetany from the hypocalcemia
D- breastfed do not get it oral low sun exposure, pigmented skin
what enzyme activates vitamin D
alpha 1 hydroxylase
excess ledas to hypercalcemia, hypercalciuria, loss of appetite, stupor, and grnaulomas
vitamin D
def- hemolytic anemia, acanthocytosis, muscle weakness,posterior collumn and spinocerebellar tract demyelination- no megaloblastic aneia or increased methylamlonic acid- looks the same as B12 def
vitamin E
what does vitamin E do
it is an antioxidnat
def leads to neonatal hemorrhage with increased PT and PTT but normal bleeding time. neonatal have sterile Gi so cannot make it yet or prolonged antibiotics
vitamin K
what does fetus look like with K def
intracranial pressure and refused vaccin
deficiency leadsto delayed wound healing, hypogonadism, decreased axillary hair, dysgeusia, anosmia, acrodermatitis enteropathica- why and what
zinc can be from small intestine malabsortion
protein malnutrition resulting in skin lesions, and edema from decreased plasma oncotic pressure.
Kwashiorkor
total calorie malnutrition resulting in emaciattion like tissue and muscle wasting and loss of subcutaneous fat
marasmus
rate limiting enzyme for glycolysis
phosphofructokinase 1
rate limiting enzyme for gluconeogenesis
Fructors 1 6 bisphosphate
rate limiting enzyme for TCA
isocitrate dehydrogenase
rate limiting enzyme for glycogenesis
glycogen synthase
rate limiting enzyme for glycogenolysis
glycogen phosphorylase
rate limiting enzyme for HMG shunt
G6PD
rate limiting enzyme for de novo pyrimidine synthesis
CPS2
rate limiting enzyme for de novo purine synthesis
PRPP amidotransferase
rate limiting enzyme for urea cycle
CPS1
rate limiting enzyme for fatty acid synthesis
acetyl coa carboxylase
rate limiting enzyme for fatty acid oxidation
carnithine acyltransferase I
rate limiting enzyme for ketogenesis
HMG CoA synthase
rate limiting enzyme for cholesterol synthesis
HMG reductase
when is hexokinase used and what are its enzymatic properties
it is in most cells and it has a low km but high affinity but low Vmax
when is glucokinase used and what are its enzymatic properties
only in the liver and on Beta cells of the pancreas. It is insulin dependent. Need a lot of glucose to use it, but it has a high km but high Vmax so very efficient
derivatives of phenylalanine
tyrosine, thyroxine, dopa, melanine, dopamine, NE, epi
derivatives of tryptophan
niacin, serotonin, melatonin
derivatives of histidine
histamine
derivatives of glycine
porphyrin, heme
derivatives of glutamate
GABA and glutathione
derivatives of arginine
creatine, urea, nitric oxide