Important Lab Values

Question 1

Digoxin level

Answer 1

0.8 - 2

Question 2

Peak drug serum

Answer 2

HIGHEST CONCENTRATION of a drug

30 minutes after start of infusion

Question 3

Trough drug serum

Answer 3

LOWEST CONCENTRATION of a drug.

5 minutes before next infusion (last ending part of current infusion)

Question 4

Pheochromocytoma

Answer 4

Tumor of adrenal that causes headache, diaphoresis and palpitations

Question 5

Aldosteronism affects this level

Answer 5

Potassium

Question 6

Vasopressin

Answer 6

Promotes vasoconstriction but can also lead to angina and MI.

RN can give prn nitroglycerin if needed.

Question 7

Monitor this level when administering Nitroprusside sodium

Answer 7

Thiocyanate level

Question 8

Complication of long bone fractures or surgery that causes SOB, petechiae on chest/armpit

Answer 8

Fat embolism

Question 9

Allen’s test

Answer 9

Used to assess circulation of extremity prior to Arterial Line insertion.

Question 10

Central Venous Pressure (CVP)

Answer 10

Measures blood return (pressure) to the heart back to arterial system.

Normal is 2-6 mmHg

Low CVP means hypovolemia.

Question 11

Central Venous Pressure (CVP)

Answer 11

Normal is 2-6 mmHg

Low CVP means hypovolemia.

Question 12

Phosphate level

Answer 12

1.7 - 2.6

Question 13

Magnesium level

Answer 13

1.5 - 2.5

Question 14

Buerger’s disease

Answer 14

aka thromboangiitis obliterans caused by smoking. Bluish fingers from reduced blood flow

Question 15

Creatinine

Answer 15

0.6 - 1.2