Question

A 60-year-old man entered the emergency room department after 2 days of "not feeling so well." Patient history revealed a myocardial infarction 5 years ago, when he was prescribed Digoxin. Two years ago, he was prescribed a diuretic after periodic bouts of edema. An ECG performed at the time of admission indicated the presence of cardiac arrhythmia. Chemistry testing performed on admission showed the following results: Analyte Result Digoxin 1.4 ng/mL (therapeutic range 0.5-2.2 ng/mL) Na+ 137 mmol/L K+ 2.5 mmol/L Cl- 100 mmol/L HCO3- 25 mmol/L Mg2+ 0.4 mmol/L Ionized Calcium 1.0 mmol/L Which results are abnormal? For each abnormal result, determine if it is high or low compared to the reference ranges discussed in lecture. The Digoxin level is within the recommended therapeutic range. The Digoxin results mean that the arrhythmia is not likely due to the patient's history of myocardial infarction, so what might be causing the patient's arrhythmia? How could this patient be treated?

          A 60-year-old man entered the emergency room department after 2 days of "not feeling so well." Patient history revealed a myocardial infarction 5 years ago, when he was prescribed Digoxin. Two years ago, he was prescribed a diuretic after periodic bouts of edema. An ECG performed at the time of admission indicated the presence of cardiac arrhythmia. Chemistry testing performed on admission showed the following results:

Analyte
Result
Digoxin
1.4 ng/mL
(therapeutic range 0.5-2.2 ng/mL)
Na+
137 mmol/L
K+
2.5 mmol/L
Cl-
100 mmol/L
HCO3-
25 mmol/L
Mg2+
0.4 mmol/L
Ionized Calcium
1.0 mmol/L

Which results are abnormal? For each abnormal result, determine if it is high or low compared to the reference ranges discussed in lecture.

The Digoxin level is within the recommended therapeutic range. The Digoxin results mean that the arrhythmia is not likely due to the patient's history of myocardial infarction, so what might be causing the patient's arrhythmia?

How could this patient be treated?

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a 60 year old man entered the emergency room department after 2 days of not feeling so well patient history revealed a myocardial infarction 5 years ago when he was prescribed digoxin two ye 55678

Added by Timothy S.

Biology for AP Courses

Julianne Zedalis, John Eggebrecht

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Solved by Expert Bryan Valdivia

05/16/2023

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A 60-year-old man entered the emergency room department after 2 days of "not feeling so well." Patient history revealed a myocardial infarction 5 years ago, when he was prescribed Digoxin. Two years ago, he was prescribed a diuretic after periodic bouts of edema. An ECG performed at the time of admission indicated the presence of cardiac arrhythmia. Chemistry testing performed on admission showed the following results: Analyte Result Digoxin 1.4 ng/mL (therapeutic range 0.5-2.2 ng/mL) Na+ 137 mmol/L K+ 2.5 mmol/L Cl- 100 mmol/L HCO3- 25 mmol/L Mg2+ 0.4 mmol/L Ionized Calcium 1.0 mmol/L Which results are abnormal? For each abnormal result, determine if it is high or low compared to the reference ranges discussed in lecture. The Digoxin level is within the recommended therapeutic range. The Digoxin results mean that the arrhythmia is not likely due to the patient's history of myocardial infarction, so what might be causing the patient's arrhythmia? How could this patient be treated?

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00:01 Okay, this question says, a 60 -year -old man entered the emergency room department after two days not feeling so well.

00:08 A patient history revealed a myocardial infarction five years ago when he was prescribed a deoxyne.

00:14 Two years ago he was, practically this patient is taking right now deoxyne, okay.

00:21 It says two years ago he was prescribed a uretic after periodic bouts of edema.

00:26 So this patient is also taking uretics, okay.

00:31 And it says an ecg performed at the time of admission indicated the presence of cardiac arrhythmia.

00:37 A chemistry testing performed on admission showed the following results.

00:41 And you have here a deoxyne level of 1 .4 nanograms per milliliter.

00:48 So practically these levels are within the reference range, okay.

00:53 They can say that the levels for sodium are 137.

00:57 So it is also within the normal range because the normal range for sodium is from 135 to 145.

01:05 Then you have a potassium levels of 2 .5.

01:08 And these levels here are low because the normal levels for potassium are from a range from 3 .5 to 5 millimoles per liter, okay.

01:20 So in this case these levels are low.

01:22 So this patient has hypokalemia, hypokalemia, okay.

01:30 And the chloride levels are 100.

01:32 In this case these levels are also normal.

01:34 Now bicarbonate levels are also normal because it ranges from 24 to 20 or from 22 to 26...

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