Practice exams Flashcards
Which node does sinus tachycardia originate in?
SA node
What does the QT interval measure?
depolarization and repolarization time of the ventricles
How may digitalis affect the QT interval?
May actually shorten it.
What does the ST segment represent?
isoelectric period following depolarization
How would digitalis affect the ST segment?
Sagging
How would an MI affect the ST segment?
May elevate it, also may be elevated as much as 2mm in african american males.
Duchenne MD affects proximal or distal muscles first?
Proximal
Spondylitis
Inflammation of the vertebra
Spondylolysis
Defect in the pars or arch of vertebra. Most common in L5
Spod ylolisthesis
Forward displacement of one vertebra over another.
Spondyloptosis
Vertebral body is completely off of the adjacent body (Grade 5)
Which laboratory finding could be MOST related to the use of silver sulfadiazine?
Leukopenia (<5,000 mm^3).
What types of medications could cause hypokalemia?
steroids, diuretics
What type of topical agent could affect body fluid pH?
mafenide acetate
The width of the BP bladder should be ___% of the circumference of the midpoint of the limb
40%, avg for adults is 5-6 inches
Pt status post stoke is on a mat prone on elbows, working on lateral weight shifts. Which therapeutic exercise technique would allow the patient to improve dynamic stability with this activity?
Approximation: Facilitates contraction and stability through joint compression.
What does the Barthel Index examine? Scoring?
10 ADLs, score from 0-100, increments of 5. 100 is best.
Hubbard tank
full-body immersion, 4x8x6
Highboy tank
for longer body parts, but pt can’t fully extend LE in sitting, but is deep enough for mid thoracic region
Lowboy tank
Can extend LE, but not very deep
If PT measures pt’s volume after maximal inhalation then exhalation, what is it measuring?
Vital capacity
What does a large sample size increase?
The likelihood of rejecting the null
What do most cardiac guidelines say for max HR allowed in phase I?
130 bpm or no more than 20bpm above for post-MI, 30bpm for post-surgery
A decrease in systolic pressure of ____mmHg during phase 1 cardiac should not be allowd
Shouldn’t exceed 10mmHg