Important Labs Flashcards
What is the low end of abnormal (not critical) range for hemoglobin?
8.0
What is the abbreviation for hemoglobin?
Hgb
What should be avoided when hemoglobin is under 8?
Resistive exercise
What are signs and symptoms associated with low hemoglobin that indicate therapy should be held?
Increase in resting HR over 30BPM with activity, nausea, angina, SOB, SpO2 under 90%, dizziness not resolved in 60 seconds of coming upright
What is the low end of normal range for hematocrit?
25%
What is the abbreviation for hematocrit?
Hct
What is the normal range for potassium?
3.5-5.0
What is the abbreviation for potassium?
K
Abnormal potassium may interfere with ___________ and ___________ .
muscle contraction and cardiac conductivity
Therapy should be deferred to later in the day for patients with a new potassium level under _______
3.5
What is the abbreviation for sodium?
Na
What is the normal range for sodium?
135-145
Therapy should usually be held for sodium under _____
125
Therapy should usually be held for sodium over _____
155
What is the normal range for blood glucose?
80-120
Signs and symptoms of intolerance of activity due to low glucose include:
dizziness, confusion, lethargy, decreased motor control, blurred vision
Signs and symptoms of intolerance of activity due to high glucose include:
thirst, light-headed, lethargy, feeling hot, blurry vision
What is the most common cause of an elevated white blood cell count?
Infection
In general, when reviewing lab values that have been abnormal, a therapist should hope to see a trend towards _______ when determining the patient’s ability to tolerate therapy
normal
The normal range for troponins is
.04
In the presence of elevated troponins, the therapist should always review the _______ notes when assessing patient tolerance for activity
cardiology
Elevated troponins can commonly indicate __________ or __________
demand ischemia or myocardial infarction
Therapists should look for a trend ____________ in troponins for at least 24 hours after peak before initiating therapy
down or toward normal
Therapists should look for a trend down in troponins for at least ____ hours after peak before initiating therapy
24
Common labs to measure blood clotting include
PTT and INR
If clotting labs are abnormally high, blood may:
clot slowly and increase risk of uncontrolled bleeding
If clotting labs are abnormally low, blood may:
clot faster than normal and increase risk of dangerous clots
For a patient taking an anticoagulant medication, a therapeutic INR is
2.0-3.0
Recent labs should be reviewed:
before initiating every therapy session in an acute setting
