Various Lab Values Questions
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When are troponins released after injury?
6 hours → 3 days
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Troponin peaks when?
18-24 hours after sx
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How long can troponins stay elevated?
10 days
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When is CK elevated in MI
within 3-6 hours
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When does CK peak?
18-24 hours
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When does CK return to normal?
2-3 days
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NYHA class I
BNP \= 100-300 pg/mL
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NYHA class I description
no sx, no limits
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NYHA class II
BNP \>300 pg/mL
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NYHA class II description
mild sx, slight limits
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NYHA class III
BNP \>600 pg/mL
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NYHA class III description
marked limits; only comfortable @ rest
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NYHA class IV
BNP \> 900 pg/mL
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NYHA class IV description
severe; sx @ rest
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When are blood lipids most accurate?
Before MI or within 6 weeks of injury
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Borderline high total cholesterol
200-239
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High total cholesterol
≥240
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Borderline high LDL
130-159
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High LDL
160-189
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Very high LDL
≥190
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Borderline high triglycerides
150-199
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High triglycerides
200-499
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Very high triglycerides
≥500
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Leukopenia WBCs
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Neutropenia WBCs
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Moderate neutropenia WMCs
0.5-1.0 109/L
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Severe neutropenia
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Thrombocytopenia
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Need transfusion
Platelets
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Polycythemia Hb
\>20g/dL
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Anemia Hb
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Polycythemia Hct
\>60%
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Anemia Hct
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D-Dimer + test
\>400-500 ng/mL
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INR therapeutic range for VTE, PE, a-fib
2-3
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INR therapeutic range for high-risk pts
2.5-3.5
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aPTT spontaneous bleeding
\>70 seconds
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aPTT therapeutic for anticoagulant effectiveness
60-109 secs
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PT high risk for bleeding into tissues
\>25 secs
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Hypernatremia
\>145
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Hyponatremia
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Hyperkalemia
\>5.5
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Hypokalemia
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Hypernatremia leads to
impaired cognition; tachycardia
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Hyponatremia leads to
impaired cognition; orthostatic hypotension
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Hyperkalemia leads to
risk of cardiac issues
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Hypokalemia leads to
sensations, hypotension, constipation
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Hypercalcemia leads to
heart issues
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Hypocalcemia leads to
impaired cognition
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Hyperchloremia leads to
decreased LOC?
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Hypochloremia leads to
need of motor function / LOC monitoring
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Hyperphosphatemia leads to
heart issues, N/V
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Hypomagnesemia leads to
EKG changes (PVC→V-tach→V-fib)
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Increased BUN leads to
?HTN, fluid retention, itchy/dry skin, dyspnea
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Increased serum creatinine leads to
less pee, dark urine, low fever, HA, dyspnea
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Hyperglycemia
\>200
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Hypoglycemia
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Dx of diabetes
FPG\>126 OR 2 hours glucose \>200
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HbA1C pre-diabetes
5.7-6.4
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HbA1C diabetes
\>6.5
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