Daily nursing and TEAS practice with comprehensive rationales
Nurse Dive Free Nursing Practice Question
When setting up a dimensional analysis equation, why is it important to align units diagonally?
A. To increase the speed of calculation
To increase the speed of calculation: Aligning units diagonally does not inherently speed up the calculation; the main purpose is to ensure proper unit conversion and accuracy.
B. To cancel out units and simplify the calculation
To cancel out units and simplify the calculation: Aligning units diagonally allows units that appear in both the numerator and denominator to cancel out correctly. This ensures the final answer is in the desired unit and reduces the risk of dosing errors.
C. To ensure the equation is balanced
To ensure the equation is balanced: While correct unit alignment contributes to a mathematically correct setup, “balancing” is not the primary reason; the focus is on unit cancellation.
D. To make the equation Easier to read
To make the equation easier to read: Although diagonal alignment can improve readability, the critical purpose is accurate conversion and calculation through proper cancellation of units.
This question is an excerpt from Nurse Dive's nursing test bank - Ati Lpn Med Math Proctored Exam. Take the full exam now
Full Explanation
Rationale:
A. To increase the speed of calculation: Aligning units diagonally does not inherently speed up the calculation; the main purpose is to ensure proper unit conversion and accuracy.
B. To cancel out units and simplify the calculation: Aligning units diagonally allows units that appear in both the numerator and denominator to cancel out correctly. This ensures the final answer is in the desired unit and reduces the risk of dosing errors.
C. To ensure the equation is balanced: While correct unit alignment contributes to a mathematically correct setup, “balancing” is not the primary reason; the focus is on unit cancellation.
D. To make the equation easier to read: Although diagonal alignment can improve readability, the critical purpose is accurate conversion and calculation through proper cancellation of units.
Similar Questions
A nurse is administering an oral medication to a patient with dysphagia. What is the most appropriate action to ensure safe administration?
A. Assess the patient's ability to swallow before administration.
Assess the patient's ability to swallow before administration: Evaluating the patient’s swallowing ability is the first and most important step to prevent choking, aspiration, or medication errors. This assessment guides whether modifications to the route or form are necessary.
B. Change the route to intravenous administration without consulting the provider.
Change the route to intravenous administration without consulting the provider: Altering the route without provider approval can be unsafe and may lead to incorrect dosing or adverse effects. Route changes require an order and clinical judgment.
C. Crush the medication and mix it with water or applesauce.
Crush the medication and mix it with water or applesauce: Crushing may be appropriate for some medications, but not all (e.g., extended-release or enteric-coated forms). This action should only be taken after assessing swallowing ability and verifying the medication can safely be altered.
D. Administer the medication with a large glass of juice to ensure it is swallowed.
Administer the medication with a large glass of juice to ensure it is swallowed: Simply giving fluids does not address dysphagia risk and may not prevent aspiration. Proper assessment and potentially alternative administration strategies are needed for safety.
Full Explanation
Rationale:
A. Assess the patient's ability to swallow before administration: Evaluating the patient’s swallowing ability is the first and most important step to prevent choking, aspiration, or medication errors. This assessment guides whether modifications to the route or form are necessary.
B. Change the route to intravenous administration without consulting the provider: Altering the route without provider approval can be unsafe and may lead to incorrect dosing or adverse effects. Route changes require an order and clinical judgment.
C. Crush the medication and mix it with water or applesauce: Crushing may be appropriate for some medications, but not all (e.g., extended-release or enteric-coated forms). This action should only be taken after assessing swallowing ability and verifying the medication can safely be altered.
D. Administer the medication with a large glass of juice to ensure it is swallowed: Simply giving fluids does not address dysphagia risk and may not prevent aspiration. Proper assessment and potentially alternative administration strategies are needed for safety.
A patient is to receive 900 mg of a drug, supplied as 300 mg tablets. How many tablets should be administered?
A. 2 tablets
Calculation: Ordered Dose = 900 mg Available Dose = 300 mg Number of tablets = Ordered Dose / Available Dose = 900 / 300 = 3 tablets
B. 5 tablets
Calculation: Ordered Dose = 900 mg Available Dose = 300 mg Number of tablets = Ordered Dose / Available Dose = 900 / 300 = 3 tablets
C. 3 tablets
Calculation: Ordered Dose = 900 mg Available Dose = 300 mg Number of tablets = Ordered Dose / Available Dose = 900 / 300 = 3 tablets
D. 4 tablets
Calculation: Ordered Dose = 900 mg Available Dose = 300 mg Number of tablets = Ordered Dose / Available Dose = 900 / 300 = 3 tablets
Full Explanation
Calculation:
Ordered Dose = 900 mg
Available Dose = 300 mg
Number of tablets = Ordered Dose / Available Dose
= 900 / 300
= 3 tablets
What information on a drug label is essential for avoiding drug interactions?
A. Lot number
Lot number: The lot number identifies a specific production batch for tracking purposes but does not provide information about potential drug interactions.
B. Storage conditions
Storage conditions: Storage instructions ensure drug stability and efficacy but do not indicate interactions with other medications.
C. Manufacturer's address
Manufacturer's address: The manufacturer’s contact information is useful for reporting issues or inquiries but does not help prevent drug interactions.
D. Active ingredients
Active ingredients: Knowing the active ingredients allows the nurse to identify potential interactions with other medications the patient is taking. This information is crucial for preventing harmful effects, duplications, or contraindicated combinations.
Full Explanation
Rationale:
A. Lot number: The lot number identifies a specific production batch for tracking purposes but does not provide information about potential drug interactions.
B. Storage conditions: Storage instructions ensure drug stability and efficacy but do not indicate interactions with other medications.
C. Manufacturer's address: The manufacturer’s contact information is useful for reporting issues or inquiries but does not help prevent drug interactions.
D. Active ingredients: Knowing the active ingredients allows the nurse to identify potential interactions with other medications the patient is taking. This information is crucial for preventing harmful effects, duplications, or contraindicated combinations.