Diagnostics Exam 3
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** Expert-Verified Explanation
** Question with Correct Answer
** Latest Edition | Updated
,during exercise stress test, heart rate should be raised 85% ; 220
to ______% of predicted value (_______ bpm-age)
what agents can be used for stress echocardiogram? Dobutamine
Adenosine
Dipyridamole
this agent is used in stress echocardiogram to increase Dobutamine
cardiac workload but is contraindicated in patients with
severe baseline HTN, ventricular arrhythmias, recent MI,
or unstable angina
these agents are used in stress echocardiogram to Adenosine
induce selective coronary vasodilation of less diseased Dipyridamole
vessels, hypoperfusion of areas at ischemic risk;
contraindicated in patients with bronchospastic airway
disease, hypotension, sick sinus, AV block
Adenosine bronchospastic airway disease
Dipyridamole hypotension
AV blocks
contraindications sick sinus
Dobutamine contraindications severe baseline HTN
recent MI
ventricular arrhythmias
unstable angina
Exercise capacity is reported in terms of ? METs
a sonogram that employs either exercise or a Stress echocardiogram
pharmacologic agent to increase heart rate in order to
assess how the heart functions with exertion
Routine pregnancy testing is done by rapid ____________ qualitative; quantitative
urine hCG test, or less commonly ____________ serum hCG
test
hCG test is positive (> _______ mIU/mL) in most pregnant 50
women at the time of or shortly after the first missed
menstrual period
•Used to diagnose and monitor pregnancy, and in Beta Subunit Human Chorionic Gonadotropin (β-hCG)
Oncology to monitor treatment response or recurrence
of choriocarcinoma or germ cell tumors
, can be used to detect lower extremity peripheral abnormal pulse ox (>2% dif between finger and toe)
arterial disease and is comparable in its performance
characteristics to the ankle-brachial index
which ankle pressure do you use to calculate the ABI? the higher one
if pulses are difficult to assess what should you consider ABI
getting?
best imaging for acute ischemic stroke? MRI with diffusion weighted imaging
what is used as a measure of how much blood is in the cerebral perfusion pressure
brain?
how can persistently elevated ICP affect the cerebral it will lower it leading to hypoperfusion and neurologic injury
perfusion pressure? what can this lead to?
what makes up the volume of the brain (give CSF (10%)
percentages) blood (10%)
brain parenchyma (80%)
normal cerebral perfusion pressure and what happens 60-100
if too high or low?
too high = brain bleed
too low = stroke
normal ICP 5-15 mmHg
how to measure ICP? ventriculostomy (gold standard)
camino/bolt
gold standard ICP measurement ventriculostomy
"Gold standard" for ICP measurement ventriculostomy
-accurate diagnostic tool
-also therapeutic --> drainage of CSF
** 100% Guaranteed Pass
** Expert-Verified Explanation
** Question with Correct Answer
** Latest Edition | Updated
,during exercise stress test, heart rate should be raised 85% ; 220
to ______% of predicted value (_______ bpm-age)
what agents can be used for stress echocardiogram? Dobutamine
Adenosine
Dipyridamole
this agent is used in stress echocardiogram to increase Dobutamine
cardiac workload but is contraindicated in patients with
severe baseline HTN, ventricular arrhythmias, recent MI,
or unstable angina
these agents are used in stress echocardiogram to Adenosine
induce selective coronary vasodilation of less diseased Dipyridamole
vessels, hypoperfusion of areas at ischemic risk;
contraindicated in patients with bronchospastic airway
disease, hypotension, sick sinus, AV block
Adenosine bronchospastic airway disease
Dipyridamole hypotension
AV blocks
contraindications sick sinus
Dobutamine contraindications severe baseline HTN
recent MI
ventricular arrhythmias
unstable angina
Exercise capacity is reported in terms of ? METs
a sonogram that employs either exercise or a Stress echocardiogram
pharmacologic agent to increase heart rate in order to
assess how the heart functions with exertion
Routine pregnancy testing is done by rapid ____________ qualitative; quantitative
urine hCG test, or less commonly ____________ serum hCG
test
hCG test is positive (> _______ mIU/mL) in most pregnant 50
women at the time of or shortly after the first missed
menstrual period
•Used to diagnose and monitor pregnancy, and in Beta Subunit Human Chorionic Gonadotropin (β-hCG)
Oncology to monitor treatment response or recurrence
of choriocarcinoma or germ cell tumors
, can be used to detect lower extremity peripheral abnormal pulse ox (>2% dif between finger and toe)
arterial disease and is comparable in its performance
characteristics to the ankle-brachial index
which ankle pressure do you use to calculate the ABI? the higher one
if pulses are difficult to assess what should you consider ABI
getting?
best imaging for acute ischemic stroke? MRI with diffusion weighted imaging
what is used as a measure of how much blood is in the cerebral perfusion pressure
brain?
how can persistently elevated ICP affect the cerebral it will lower it leading to hypoperfusion and neurologic injury
perfusion pressure? what can this lead to?
what makes up the volume of the brain (give CSF (10%)
percentages) blood (10%)
brain parenchyma (80%)
normal cerebral perfusion pressure and what happens 60-100
if too high or low?
too high = brain bleed
too low = stroke
normal ICP 5-15 mmHg
how to measure ICP? ventriculostomy (gold standard)
camino/bolt
gold standard ICP measurement ventriculostomy
"Gold standard" for ICP measurement ventriculostomy
-accurate diagnostic tool
-also therapeutic --> drainage of CSF
