Calculate the dosage using the label below. Round to the nearest tenth place. Order: Celestone, Soluspan (betamethasone) 12 mg IM q24 hr. for 2 doses. Available

0.5 mL sub-cut
1 mL Stat
4 mL IV
2 mL IM
The Correct Answer is D
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:
Volume to administer (mL) = Available concentration (mg/mL) / Ordered dose (mg)
Volume to administer = 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.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["C","D","E","F"]
Explanation
A) Social Media:
Social media is not a reliable source for evaluating medication information. Although patients may share their experiences, the information on social media can be anecdotal, unverified, and often lacks scientific evidence. Medical professionals should avoid using social media as a reference for clinical decision-making and instead rely on trusted, evidence-based resources.
B) Wikipedia:
While Wikipedia may offer general overviews of various medications, it is a crowdsourced platform and not a peer-reviewed or professional resource. The information on Wikipedia can be edited by anyone, which raises concerns about accuracy and reliability. While useful for a quick overview, it is not recommended for in-depth medication information or clinical decision-making.
C) Physicians' Desk Reference (PDR):
The Physicians' Desk Reference (PDR) is a well-established, reliable resource for medication information. It includes detailed drug monographs, including indications, dosing, contraindications, adverse effects, and drug interactions. Although it is often considered more of a reference for healthcare providers, it is a trusted and authoritative source for accurate medication information.
D) Lexicomp:
Lexicomp is an evidence-based, reputable resource that provides comprehensive drug information, including dosage recommendations, side effects, interactions, and clinical guidelines. It is frequently used by healthcare providers for decision-making in clinical practice and is considered highly reliable.
E) Micromedex:
Micromedex is another reliable, evidence-based drug information database widely used in healthcare settings. It provides drug monographs, information on drug interactions, adverse effects, and clinical recommendations, making it an essential tool for clinical decision-making.
F) American Hospital Formulary Service (AHFS) Drug Information:
The American Hospital Formulary Service (AHFS) is a trusted source of drug information that is used by healthcare providers to obtain reliable, evidence-based data. It includes detailed monographs on prescription drugs, over-the-counter medications, and other therapeutic agents, which are useful for clinicians when assessing treatment options.
Correct Answer is ["A","B","C","E"]
Explanation
A) Gastric emptying time:
Gastric emptying time plays a significant role in drug absorption. The faster the stomach empties its contents into the small intestine, the quicker the drug can be absorbed. If gastric emptying is delayed, such as with certain diseases, medications, or conditions (like gastroparesis), drug absorption may be slowed. Conversely, rapid gastric emptying can lead to quicker absorption, potentially reducing the time the drug has to exert its effects.
B) Capillary walls with large spaces between cells:
Capillary permeability influences how easily a drug can pass from the bloodstream into tissues. If the capillary walls have large gaps, such as in certain areas of the body (e.g., in the liver or spleen), drugs can more easily move across the capillary membrane and be absorbed into the system.
C) Stability and solubility of the medication:
For a drug to be absorbed effectively, it must be stable in the body and soluble in bodily fluids. Drugs that are poorly soluble or unstable in the stomach may not be absorbed efficiently. For instance, medications that are lipophilic (fat-soluble) may require a carrier or special formulation (e.g., emulsions or nanoparticles) to aid in absorption, whereas hydrophilic drugs may face challenges crossing cell membranes without assistance.
D) Inspiratory effort:
Inspiratory effort does not directly affect the absorption of drugs. Inspiratory effort refers to the act of inhaling, which is more relevant to drugs administered via inhalation (e.g., inhalers or nebulizers). It affects how well the drug is delivered to the lungs but does not influence absorption in the gastrointestinal tract or other routes of administration.
E) Presence of food in the stomach or intestines:
Food in the stomach or intestines can either speed up or slow down drug absorption. Some drugs are absorbed better on an empty stomach because food can slow gastric emptying and alter the drug's solubility. On the other hand, certain medications (e.g., fat-soluble drugs) may require food for optimal absorption.
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