Which product is the antidote for digitalis toxicity?

Gamma globülin

Cardizem

Protamine

Digoxin immune fab

Answer and Explanation

The Correct Answer is D

A) Gamma globulin
Gamma globulin is a blood product used to provide passive immunity by supplying antibodies to prevent or treat certain infections. It is not used for digitalis toxicity, so A is incorrect.

B) Cardizem
Cardizem (diltiazem) is a calcium channel blocker primarily used for controlling heart rate and treating conditions such as atrial fibrillation or angina. It is not used as an antidote for digoxin toxicity, so B is incorrect.

C) Protamine
Protamine is a medication used to reverse the effects of heparin, an anticoagulant. It works by neutralizing the anticoagulant activity of heparin, but it is not used to treat digitalis (digoxin) toxicity, so C is incorrect.

D) Digoxin immune fab
Digoxin immune fab is the specific antidote for digoxin toxicity. It consists of antibodies that bind to digoxin molecules, thereby neutralizing their toxic effects on the heart. This antidote is used when a patient exhibits severe symptoms of digoxin toxicity, such as arrhythmias or life-threatening effects on the heart. Therefore, D is the correct answer.

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Correct Answer is B

Explanation

Given:

Ordered dose of Digoxin: 0.375 mg daily

Available Digoxin tablets: 0.25 mg/tablet

Step 1: Set up the proportion:

Desired dose (mg) / Available tablet strength (mg/tablet) = Number of tablets

Step 2: Substitute the values:

0.375 mg / 0.25 mg/tablet = Number of tablets

Step 3: Calculate the number of tablets:

Number of tablets = 0.375 mg ÷ 0.25 mg/tablet

Number of tablets = 1.5 tablets

A. 3 tabs B. 2 tabs C. 1 1/2 tabs D. 4 tabs

Correct Answer is B

Explanation

Calculate the dosage using the ratio and proportion:

Given:

Order: 200 mg p.o. t.i.d.

Available: Tegretol 100 mg chewable tablets.

Step 1: Set up the proportion

Availabledose(100mg) : 1tablet = Ordereddose(200mg) : xtablets

Step 2: Solve for 𝑥

100 mg : 1 tab = 200 mg : 𝑥 tabs

𝑥 = 200/100 = 2 tablets

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Which product is the antidote for digitalis toxicity?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Calculate the following dosage using ratio and proportions method (Round answers to the nearest tenth). Order: Digoxin 0.375mg p. o. daily. Available: Digoxin (scored tablets) labeled 0.25mg

Correct Answer is B

Explanation

Calculate the following dosage using ratio and proportions method. Round answers to the nearest tenth. Order: Tegretol 200 mg p.o.t.i.d. Available

Correct Answer is B

Explanation

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