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Which of following prescriptions may have a potential to cause medication error ?
A) Amlodipine 5.0 mg PO OD
B)Thyroxin 25 mcg PO daily
C)Acetaminophen 500mg PO TID
D)Regular insulin 5 units subcutaneously STAT
A) Amlodipine 5.0 mg PO OD
B)Thyroxin 25 mcg PO daily
C)Acetaminophen 500mg PO TID
D)Regular insulin 5 units subcutaneously STAT
Explanation:
The prescription with a potential to cause a medication error is A) Amlodipine 5.0 mg PO OD.
The error in option A lies in the use of the trailing zero after the decimal point ("5.0 mg"). The "5.0" could be misread as "50" if the decimal point is missed, leading to a potentially fatal overdose. The Institute for Safe Medication Practices (ISMP) and other patient safety organizations recommend avoiding trailing zeros for doses expressed in whole numbers to prevent such misinterpretation.
B) Thyroxin 25 mcg PO daily – Using mcg instead of mg is appropriate and prevents ten-fold errors.
C) Acetaminophen 500 mg PO TID – Clear dose and frequency.
D) Regular insulin 5 units subcutaneously STAT – “Units” is written in full (not “U”), which is recommended.
Which of the following situations allow for accepting verbal order?
A)In a code status
B)To start chemotherapy
C)When prescriber is on vacation
D) For a non-formulary drug request
Explanation:
Verbal orders are generally discouraged due to the high risk of error and are typically only permitted in urgent or emergency situations where immediate action is essential for patient care and it is not feasible to obtain a written or electronic order.
A code status (e.g., a cardiac arrest) is a critical, life-threatening emergency that necessitates immediate action, making it an acceptable situation for accepting a verbal order.
❌ Chemotherapy orders must always be written/electronic due to high risk and complexity.
❌ Verbal orders cannot be accepted from a prescriber who is unavailable or on vacation. Orders must be given by a licensed provider who is present and responsible for the patient's care.
❌ Non-formulary drug requests typically require additional review and written documentation for approval and justification. Verbal orders are not appropriate in this context, except possibly in an emergency where a formulary drug is unavailable.
The correct option is A) In a code status.
Which of the following studies represent cost-effectiveness analyses study?
A)Comparing costs for 2 therapeutically equivalent products
B)Comparing costs and savings of a pharmacist serves versus
C)Comparing patients achieving control as the outcome for 2 anti hyperglycemic drugs
D)Comparison of costs of 2 chemotherapy regime with the cost C using best supportive care
Explanation:
A cost-effectiveness analysis (CEA) compares the relative costs and health outcomes of different interventions, typically measuring the outcome in natural units (e.g., "patients achieving control", "life years gained", or "deaths prevented").
❌ A) Comparing costs for 2 therapeutically equivalent products is a cost-minimization analysis (CMA). CMA is used when the outcomes of two or more interventions are assumed to be equivalent, so the analysis focuses solely on choosing the least costly option.
❌ B) Comparing costs and savings of a pharmacist service
This is cost-benefit analysis (both costs and benefits in monetary terms).
For this specific exam question, Option C is the intended answer.
A complete Cost-Effectiveness Analysis (CEA) must compare two things:
* Cost (in money)
* Outcome (in natural health units)
Option C only explicitly mentions the outcome (Comparing patients achieving control). It doesn't explicitly say "Comparing the costs and patients achieving control...". Strictly speaking, if you only compare outcomes without costs, it is just a Clinical Efficacy Trial, not an economic analysis.
In multiple-choice questions (MCQs) regarding pharmacoeconomics, you are often asked to identify the study design based solely on how the outcome is measured. The "cost" part is often assumed to be present in all options since they are all "economic studies."
The key is to look at the Unit of Measurement for the outcome:
* Option A: "Therapeutically equivalent" This is the keyword for Cost-Minimization Analysis (CMA).
* Option B: "Savings" (money) This is the keyword for Cost-Benefit Analysis (CBA).
* Option C: "Patients achieving control" (a natural health unit) This is the specific definition of Cost-Effectiveness Analysis (CEA).
* Option D: "Comparison of costs" Without an outcome mentioned, this is just a Cost Analysis (a partial evaluation).
The correct option is C.
Which of the following terms describes living microbe with reduced virulence ,and used for vaccination ?
A)Virulent
B) Dormant
C)Attenuated
D)Encapsulated
Explanation:
An attenuated microbe is a living organism whose virulence (ability to cause disease) has been reduced or weakened, making it suitable for use in vaccines to stimulate an immune response without causing serious illness.
This process, called attenuation, is a key method for creating live vaccines, which often provide strong, long-lasting immunity, sometimes after only one or two doses.
❌A) Virulent → Fully pathogenic, causes disease.
❌B) Dormant → Inactive state, not specifically used for vaccination.
❌D) Encapsulated → Describes presence of a capsule, not reduced virulence.
The correct option is C) Attenuated.
Which of the following compounds undergoes urea cycle (a biochemical reaction) that produce urea?
A)Sucrose
B) Glucose
C)Glycogen
D) Ammonia(NH3)
D) Ammonia(NH3)
Explanation:
The urea cycle is a series of biochemical reactions that primarily occur in the liver to convert highly toxic ammonia (NH3), a waste product of protein and amino acid metabolism, into less toxic urea. Urea is then transported to the kidneys and excreted in the urine.
❌A) Sucrose is a sugar (disaccharide) used for energy and is not a primary source of nitrogen for urea production.
❌B) Glucose is a simple sugar used for energy and glycogen storage, not the main compound the body converts to urea.
❌C) Glycogen is a storage form of glucose and is involved in energy regulation, not the detoxification of ammonia.
Which of the following is a characteristic cholesterol?
A)Cholesterol has hydroxyl group at carbons
B)Cholesterol is a very hydrophilic compound
C)Cholesterol has four fused hydrocarbon rings
D)Cholesterol has three double bonds in its structure
Explanation:
Cholesterol is a steroid, and all steroids share a core structure of four fused hydrocarbon rings (the cyclopentanoperhydrophenanthrene nucleus). The structure consists of three six-membered rings and one five-membered ring fused together, forming the rigid steroid nucleus.
Explanation:
Cholesterol is a steroid, and all steroids share a core structure of four fused hydrocarbon rings (the cyclopentanoperhydrophenanthrene nucleus). The structure consists of three six-membered rings and one five-membered ring fused together, forming the rigid steroid nucleus.
❌A) Cholesterol has hydroxyl group at carbons: Cholesterol has only one hydroxyl (-OH) group, specifically attached to carbon 3 of the A ring. It does not have hydroxyl groups at multiple carbon atoms (plural "carbons").
❌B) Cholesterol is a very hydrophilic compound: Cholesterol is primarily a hydrophobic molecule due to its large hydrocarbon tail and four nonpolar rings. The single hydroxyl group makes it weakly amphipathic (having both hydrophilic and hydrophobic parts), but the overall molecule has very low water solubility and is generally considered hydrophobic.
❌D) Cholesterol has three double bonds in its structure: Cholesterol has only one carbon-carbon double bond in its structure, located between carbon 5 and carbon 6 in ring B.
The correct option is C) Cholesterol has four fused hydrocarbon rings.
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