Which product is the antidote for digitalis toxicity?
Gamma globülin
Cardizem
Protamine
Digoxin immune fab
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Rationale:
Ordered Dose:
The prescription is for 12 mg of Celestone Soluspan (betamethasone) IM every 24 hours for 2 doses.
Available Dose (from label): The vial contains 6 mg/mL.
Dosage Calculation: Using the formula:
Volumetoadminister(mL) = Availableconcentration(mg/mL) / Ordereddose(mg)
Volumetoadminister = 12mg / 6mg/mL = 2 mL
Administration Route:
The order specifies IM (intramuscular) administration, aligning with the label instructions.
Thus, 2 mL IM is the correct dosage to administer.
Correct Answer is D
Explanation
Identify the desired dose and the available concentration:
Desired dose: 5 mg of hydrocodone
Available concentration: 7.5 mg of hydrocodone in 15 mL of elixir
Calculate the volume needed for the desired dose using the formula:
Volume(mL)=(Desireddose(mg)/Availableconcentration(mg/mL))
Determine the available concentration in mg/mL:
Availableconcentration=(7.5mg/15mL)=0.5mg/mL
Calculate the volume needed for a 5 mg dose:
Volume(mL)=(5mg/0.5mg/mL)=10mL
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