Shared Flashcard Set

Details

Clinical Lab Procedures Final
Reproduction, Resp, AMI, case studies
90
Health Care
Graduate
12/16/2008

Additional Health Care Flashcards

 


 

Cards

Term
Reproduction requires _________________.
Definition
Fertility
Term
Fertility is...
Definition
the natural ability to produce new life
Term
Fecundity is...
Definition
the potential that an individual will provide all steps and components required to produce a newborn
Term
Infertility is...
Definition
deficient fertility usually expressed as the failure to produce a viable newborn
Term

Average age ranges of female sexual development

 

menarche?

peak fertility?

Definition

menarche - average 12.5 yrs in US

range: 8-17

 

peak fertility: 19-24 yoa

Term
Hormonal fertility tests:
Definition

3 day FSH

LH

Progesterone level

estrogen level

Term
Non-hormonal female fertility tests:
Definition

cervical mucus fem formation

body temp measurements

hysterosalpingogram

 

 

Term
Intermediate female fertility tests:
Definition

[image][image][image]ACA, ANA, AMA immune d/os that indirectly dec fertility

 

ASA: antisperm Abs

AOA:antiovarian Abs

APA

Antithyroglobulin Abs

Chromosome analysis

selected gene testing

lupus anticoagulant

leukocyte Ab screen

NK cell detection

LH midcycle surge

Term
Female sterilization options:
Definition

oophorectomy

tubal ligation

hysterectomy

Term
Male sterilization options:
Definition

vasectomy - reqs semen analysis for absense of sperm (needs to be repeated in a month)

 

orchiectomy - removal of testes

Term
When would you study metabolic disorders, in terms of family history, during pregnancy?
Definition

consanguineous marriage

other affected relatives

early death of a sibling

diagnosis already made in another family member

Term
When would you study metabolic disorders in a newborn/child?
Definition

lethargy, coma, hypotonia, seizures, poor feeding

abnormal body odor

unexplained metabolic acidosis (hyperventilation)

unexplained respiratory alkalosis (neurologic do)

enlarged liver, unexplained jaundice

hypothermia

deafness

multiple congential abnormalities

Term
How many screening tests are done on a newborn?
Definition

28 disorders are tested for each newborn

 

make sure home deliveries are tested

Term
What is carrier detection?
Definition
detects recessive genes in healthy people for genetic counseling/family planning purposes
Term
What is phenylketonuria?
Definition

is an autosomal recessive genetic disorder characterized by a deficiency in the autozome phenylalanine hydroxylase

 

phenylalanine accumulates and is converted into phenylpyruvate

Term
What is the problem with PKU, if left untreated?
Definition

if left untreated excess deposits in the brain and can cause mental retardation and seizures

microencephaly, ECG changes, ADHD, albinism, musty odor,

Term
How do you treat PKU?
Definition

through diet

 

avoid protein rich foods

and aspartame

 

limit pasta, rice, bread, cookies, and even some fruits and vegetables. 

Term
How do you detect PKU?
Definition

every child born should be tested 12-24 hours after they are born for the PKU disorder

 

it is recommended that they get tested again in 2 wks

Term
What is galactosemia?
Definition

an autosomal recessive hereditary disease that is caused by the lack of a liver enzyme required to digest galactose.

 

Galactose is a breakdown product of lactose

Term
What is the problem with having galactosemia?
Definition
Since galactose cannot be broken down, it builds up in the cells and becomes toxic.  The body then produces abnormal chemicals, which causes the symptoms seen in infants with untreated galactosemia.
Term
How does galactosemia present?
Definition

jaundice, D/V and the baby begins to lose weight

 

If not detected immediately, it results in liver disease, speech difficulties, cataracts, mental retardation, and even death.

 

E. Coli infections are common in infants with this disorder

Term
Are the effects of galactosemia reversible?
Definition

mostly no

the cataracts have been shown to be reversible

Term
What should be avoided in a person with galactosemia?
Definition

milk products

casesin

dry milk solids

lactose

curds etc

Term
What is hereditary hemochromatosis?
Definition

the body absorbs too much iron

it is especially stored in the pancreas, liver and skin

 

85% HFE gene mutation

 

Types I-III are recessive

Type IV is dominant (Ferroportin)

Term

Who gets hemochromatosis?

What is the prevalance?

Definition

caucasians of northern european descent, mainly

 

5 out of every 1000 in the US

1 in 8-12 are carriers

Term
What are the symptoms of hemochromatosis?
Definition

arthritis

liver problems

cardiac abnormalites

skin color changes

impotence

early menopause

damage to pancreas - DM

thyroid deficiency

damage to adrenal gland

chronic fatigue

loss of body hair

depression

hypogonadism

abd pain

amenorrhea, infertility

some cancers

Term
How do you treat hemachromatosis?
Definition

phlebotomy treatments 1-2 times a week for mths to a year

 

ferretin testing after every 4

Remove 1 pint every 1-4 mths for maintanence

 

avoid Vit C, alcohol, raw sea food

Term
What are the biomarkers indicative of an AMI?
Definition

troponin I and T

CKMB

Myoglobin

lactic dehydrogenase

Term
Which biochemical marker is the Gold Standard for diagnosis of an AMI?
Definition
Troponin I
Term
What is troponin?
Definition

proteins found in cardiac and skeletal mm that aids in contraction, elevates if cardiac mm gets injuried

 

Troponin I is found only in cardiac mm

elevation in Troponin T could also indicated kidney disease

 

neither of these are elevated in sk mm injury

Term

What are the troponin levels after an AMI?

 

What is the normal level?

Definition

rises 4-6 hrs after cardiac injury

peaks in 24-48 hrs

stays above normal for 7-10 days

 

normal is < 0.07

Term

Which biochemical marker becomes abnormal the fastest?

 

 

Definition
myoglobin
Term
Which biochemical marker is the best indicator of a reinfarct within 3-10 days of an AMI?
Definition

CKMB, since it only stays elevated for 48 hrs

if a pt reinfarcts CKMB will raise again, while troponin is still high

Term
Which biochemical marker is the best to evaluate a post op AMI?
Definition

troponin

 

bc CKMB will also rise for other reasons, like crush injuries, troponin will only go up if it is actually an AMI thats the probably post-operatively

Term
Where can you find CKMB?
Definition

found in skeletal mm, cardiac mm and the brain

 

the more mm mass the higher the CKMB

 

CKMB is more specific to cardiac mm, but it is also found in low levels in sk mm

 

CKMM and CKBB are the other types of creatinine kinase and they are not as specific to the heart

Term
CKMB rises in ____ hours after AMI, peaks in _____ hours and returns to normal in _____ hours.
Definition

rises in 4-6 hours

peaks 12-24 hrs

returns to normal in 48 hours

Term
Higher levels of CKMB indicate what?
Definition
how large the area of cardiac damage is
Term
What is myoglobin?
Definition

a protein found in mm tissue that serves as an oxygen carrier

 

its found in all types of mm tissue, so with any mm tissue damage it will rise

Term
Where will you see myoglobin used as a screening tool?
Definition

acute chest pain centers

 

if it is negative it tells you there is no AMI

if its positive it only tells you that mm injury occurred somewhere

Term
After an MI, myoglobin levels rise in _____ hours, peak in _____ hours and return to normal in ____ hours.
Definition

rises in 1.5-3 hrs

peaks in 6-9 hrs

returns to normal in 24-30 hours

Term
What is the normal level for CKMB?
Definition
< 4.0
Term
What the normal level for BNP?
Definition

< 100

 

increased BNP indicates ventricular hypertrophy and Heart failure

Term

What do these levels indicate?

troponin I = 7.8

CKMB = 26

BNP = 447

Definition
the patient had an AMI in the last 2 days
Term

What do these levels indicate?

Troponin I = 1.5

CKMB = 1.7

Definition
the patient had an AMI, but it was more than two days ago and they are healing
Term

What do these levels indicate?

troponin I = 1.8

CKMB = 50

Definition
patient reinfarcted
Term
Why do lipids require proteins?
Definition
bc they are not water soluble so they need apolipoproteins to transport them in the blood
Term
Which lipoprotein is the main carrier of cholesterol in the blood?
Definition
LDL
Term
Why is LDL called "bad cholesterol"?
Definition
bc it takes cholesterol and deposits it in peripheral tissues
Term
Why is HDL called "good cholesterol"?
Definition
bc it carries cholesterol from peripheral tissues to the liver for excretion in bile
Term
Are HDL levels directly or inversely proportional to the risk of CAD?
Definition
inversely
Term
Chylomicrons are made up of primarily ____________.
Definition
triglycerides
Term
How do you measure LDLs?
Definition

not directly

 

LDL = HDL + (total cholesterol/5)

 

if trigs >400 this formula will not work, so if you want an LDL level you have to ask for it directly

Term

Which drug will increase HDL levels?

 

Definition
Niacin
Term
What are the risk factors for CAD other than high LDL?
Definition

low HDL

cigarette smoking

HTN

FHx

advanced age

 

Term
LDL goals are determined based on the pt's other risk factors, what are those goals?
Definition

LDL < 100 in a pt with no to few risk factors

 

LDL < 70 in pts with 3+ risk factors or HD

 

 

Term
Why is C-reactive protein related to heart disease?
Definition
bc atheromatous plaques contain inflammatory cells which can be a source of subtle incs in CRP
Term
CRP is actually a stronger predictor of future CAD than _______
Definition
LDL levels
Term
What are the CRP levels in reference to their predictive ability?
Definition

low risk < 1.0

average 1.0-3.0

high >3.0 (may need to refer)

Term
When does heart failure occur?
Definition

when cardiac output provides inadequate blood flow meet metabolic needs

 

systolic inability of the heart to contract strongly enough to provide perfusion

 

diastolic inability of the ventricles to relax sufficiently to receive atrial blood (heart is stiffened)

Term
HF classified as High Output means...
Definition
blood doesn't have enough O2
Term
HF classified as Low Output means...
Definition
the heart is unable to pump sufficiently with activity or at rest
Term
HF classified as Acute means...
Definition

decompensation due to acute injury of the heart (MI, ruptured valve etc.)

 

same as low output

Term
HF classified as Chronic means...
Definition

symptoms have developed over a long period of time, generally with coexisting heart diseases

 

cardiomyopathy, the heart mm is not strong enough

Term
Decreased renal perfusion leads to an increase in ______ which leads to an increase in ______ resulting in which 2 things?
Definition

renin

angiotensin II

 

1. vasoconstriction (with inc BP)

2. sodium and water retention (inc volume the heart has to pump

Term
In early HF, BNP delays what?
Definition
arterial vasoconstriction and renal sodium retention thus masking heart failure symptoms
Term
BNP is used to differentiate the cause of __________
Definition

dyspnea

 

differentiating HF from COPD, pneumonia and other pulmonary diseases

Term
Which is the best indicator of HF: BNP, Physical Exam or CXR?
Definition
BNP
Term
What is the normal level of serum d-dimer?
Definition
45-500
Term
Why would you get an increase in plasma d-dimer?
Definition
DIC, PE, DVT or other coagulation problems
Term
Ultra sensitive D-dimer has good sensitivity but poor specificity meaning...
Definition

if its negative is it usually not PE

but if its positive it could be a PE or any number of other things

Term

pH < 7.35

high PaCO2 (>45)

normal HCO3

 

 

Definition
respiratory acidosis
Term

pH <7.35

high PaCO2

high HCO3

Definition
partial compensation phase of respiratory acidosis
Term

normal pH

high PaCO2

high HCO3

Definition
full compensation phase of respiratory acidosis
Term
What can cause respiratory alkalosis?
Definition

ASA overdose

being to tense or anxious

high fever

dec O2

severe pain

 

ringing in ears is a sign of low toxic levels

Term

pH > 7.45

low PaCO2

normal HCO3

Definition
respiratory alkalosis
Term

pH > 7.45

low PaCO2

low HCO3

Definition
partial compensation phase of respiratory alkalosis
Term

normal pH

low PaCO2

low HCO3

Definition
full compensation phase of respiratory alkalosis
Term
What is one of the easiest ways to fix respiratory alkalosis?
Definition
breathing in a paper bag, it will fix it in as little as 1 minute
Term
What can cause metabolic acidosis?
Definition

diabetic ketoacidosis

alcohol

ASA

shock (lactic acidemia)

CO poisoning

renal tubular acidosis

 

Term

pH < 7.35

normal PaCO2

low HCO3

Definition
metabolic acidosis
Term

pH < 7.35

low PaCO2

low HCO3

Definition
partial compensation phase of metabolic acidosis
Term

normal pH

low PaCO2

low HCO3

Definition
full compensation phase of metabolic acidosis
Term
What is the number one reason why someone would be losing acid?
Definition
emesis
Term

pH > 7.45

normal PaCO2

  high HCO3

Definition
metabolic alkalosis
Term

pH > 7.45

low PaCO2

high HCO3

Definition
partial compensation phase of metabolic alkalosis
Term

normal pH

low PaCO2

high HCO3

Definition
full compensation phase of metabolic alkalosis
Term
Blood gas measurement helps determine the cause for...
Definition

respiratory abnormalities and monitors response to treatment

 

also essential for measuring the respiratory system's response to metabolic acidosis and alkalosis

Term
pH
Definition
measures the hydrogen ions in the blood
Term
HCO3
Definition
HCO3 helps prevent/correct acidosis. when an increase in needed, the kidney incs reabsorption and reduced urinary bicarbonate
Term
Oxygen saturation
Definition
measure the percentage of hemoglobin carrying O2
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