Practice MCQ for Government Exams
Here are some practice MCQ for government exams on the Pharmaceitics I unit II.
Pharmaceutical calculations: Weights and measures – Imperial & Metric system, Calculations involving percentage solutions, alligation, proof spirit and isotonic solutions based on freezing point and molecular weight.
Powders: Definition, classification, advantages and disadvantages, Simple compound powders – official preparations, dusting powders, effervescent, efflorescent and hygroscopic powders, eutectic mixtures. Geometric dilutions.
Liquid dosage forms: Advantages and disadvantages of liquid dosage forms Excipients used in formulation of liquid dosage forms. Solubility enhancement techniques
Units of measurement in the metric system are based on:
A. The inch and pound
B. The meter and kilogram
C. The gallon and ounce
D. A combination of A and C
Converting between the metric and imperial systems requires:
A. Simple multiplication
B. Knowledge of conversion factors
C. Ignoring the decimal point
D. Rounding to the nearest whole number
To convert grams (g) to milligrams (mg), you would:
A. Divide by 1000
B. Multiply by 1000
C. Divide by 100
D. Multiply by 100
A common unit of volume in the imperial system is the:
A. Liter
B. Milliliter (mL)
C. Fluid ounce (fl oz)
D. Cubic centimeter (cm³)
When preparing a 10% w/v solution, you dissolve:
1A. 0 g of solute in 1 mL of solvent
B. 10 mL of solute in 100 mL of solvent
C. 10 g of solute in 100 mL of solvent
D. The concentration is too low, impossible to achieve
Alligation is a method used to calculate the:
A. Chemical reaction rate
B. Mixing ratio for desired solution strength
C. Expiry date of a medication
D. Bioavailability of a drug
Proof spirit is a:
A. Pure form of alcohol
B. Mixture of alcohol and water with a specific ethanol content (around 50%)
D. Type of antibiotic medication
D. Measurement of drug potency
Isotonic solutions have the same:
A. Chemical composition
B. Freezing point
C. Color and viscosity
D. pH level
To calculate the freezing point depression of a solution, you need to know the:
A. Dosage form of the medication
B. Molecular weight of the solute and its molality
C. Brand name of the drug
D. Expiry date of the solvent
A lower molecular weight of a solute will generally result in:
A. A higher freezing point depression
B. No change in freezing point
C. A higher boiling point
D. A slower rate of absorption
Pharmacists use their knowledge of pharmaceutical calculations to:
A. Recommend the best brand of medication
B. Accurately measure and prepare medications
C. Diagnose and treat diseases
D. Develop new medications
Accurate calculations are crucial in pharmacy to avoid:
A. Increased medication costs
B. Medication errors and potential harm to patients
C. Faster pharmacy wait times
D. Expired medications being dispensed
When converting between units, it is important to:
A. Round to the nearest whole number at each step
B. Pay attention to significant figures and use proper rounding rules
C. Ignore the decimal point altogether
D. Always use the same conversion factor regardless of the units
Double-checking calculations is a recommended practice in pharmacy to:
A. Impress the doctor
B. Minimize the risk of errors
C. Save time during dispensing
D. Show expertise in pharmacology
Pharmacists can utilize technology, such as electronic calculators and software, to:
A. Rely solely on technology and skip manual calculations
B. Improve efficiency and accuracy in calculations
C. Delegate all calculations to pharmacy technicians
D. Access information about new medications only
Strong problem-solving skills are important for pharmacists because:
A. They need to solve customer complaints quickly
B. They may encounter complex dosing scenarios
C. They need to convince patients to buy certain medications
D. They manage pharmacy inventory levels
Keeping up-to-date with the latest pharmaceutical calculations is important for:
A. Marketing new medications more effectively
B. Ensuring the safe and effective use of medications
C. Completing administrative tasks more efficiently
D. Understanding the latest drug discovery research
When a pharmacist encounters an unclear prescription, they should:
A. Guess the intended dose and dispense the medication
B. Contact the prescribing healthcare professional for clarification
C. Dispense a lower dose to avoid potential harm
D. Substitute the medication with a similar brand
Effective communication with prescribers is essential to ensure:
A. Faster prescription processing
B. Accurate and safe medication use for patients
C. Increased sales for pharmaceutical companies
D. Reduced workload for pharmacists
Pharmacists play a vital role in the healthcare system by:
A. Acting as salespeople for drug companies
B. Ensuring the safe and effective use of medications
C. Focusing solely on dispensing medications
D. Diagnosing and treating illnesses themselves
Powders are a dosage form consisting of:
A. Liquids only
B. Finely divided dry particles
C. Gaseous substances
D. A combination of A and C
Powders can be classified according to:
A. Color and taste only
B. Particle size, intended use, and complexity
C. Brand name of the drug
D. Expiry date of the ingredients
Advantages of powders include:
A. Difficulty in swallowing
B. Ease of administration, dosage flexibility, and stability
C. Unpleasant taste
D. Short shelf life
Disadvantages of powders include:
A. Easy and accurate measurement
B. Bulkiness, potential for caking, and unpleasant taste
C. Long shelf life
D. Reduced risk of errors
Simple powders contain:
A. A single ingredient only
B. Two or more ingredients with similar physical properties
C. A liquid mixed with dry ingredients
D. A medication mixed with a flavored base
Compound powders contain:
A. A single ingredient only
B. Two or more ingredients with potentially different physical properties
C. A liquid mixed with dry ingredients
D. A medication mixed with a flavored base
Official preparations are powders listed in pharmacopoeias, such as:
A. Only brand-name medications
B. Any type of powder medication
C. Powders for external use only
D. Powders compounded by pharmacists
Dusting powders are intended for:
A. Internal use
B. External application to absorb moisture or promote healing
C. Dissolving in water for oral administration
D. Sublingual administration
Effervescent powders:
A. Release gas upon contact with water
B. Absorb moisture from the air
C. Form a sticky mass when exposed to air
D. Change color when exposed to light
Efflorescent powders:
A. Release gas upon contact with water
B. Lose water molecules and become powdery when exposed to air
C. Form a sticky mass when exposed to air
D. Change color when exposed to light
Hygroscopic powders:
A. Release gas upon contact with water
B. Absorb moisture from the air
C. Form a sticky mass when exposed to air
D. Change color when exposed to light
Eutectic mixtures are:
A. Combinations of drugs with undesirable interactions
B. Liquid mixtures that solidify at a lower temperature than either component alone
C. Powders that are difficult to mix evenly
D. Powders that are highly flammable
Geometric dilution is a technique used for:
A. Mixing potent drugs with bulking agents
B. Preparing effervescent powders
C. Adding flavorings to powders
D. Converting liquids to powders
Geometric dilution involves:
A. Mixing equal parts of a drug with a diluent
B. Serially diluting a drug in a geometric progression (e.g., 1:10, 1:100)
C. Adding a fixed amount of diluent to a drug
D. Dissolving a drug in a specific solvent
Geometric dilution is important for ensuring:
A. Consistent potency throughout the powder mixture
B. Faster absorption of the medication
C. A pleasant taste for the patient
D. A longer shelf life for the powder
Pharmacists need to be aware of the properties of powders to:
A. Recommend the most expensive brand
B. Select appropriate containers and storage conditions
C. Market powders more effectively
D. Delegate all powder dispensing to technicians
Proper dispensing techniques are crucial for powders to avoid:
A. Increased sales for the pharmacy
B. Segregation of ingredients and inaccurate dosing
C. Faster processing of prescriptions
D. Expired medications being dispensed
When dispensing powders, pharmacists should provide patients with:
A. Just the medication
B. Instructions on proper use and storage, including potential for caking, and how to properly measure the dose if applicable.
C. Information about potential side effects only
D. Recommendations for alternative therapies
Advantages of liquid dosage forms include:
A. Difficulty in swallowing for some patients
B. Ease of administration, especially for children or those with swallowing problems
C. Faster absorption compared to some solids
D. All of the above
Disadvantages of liquid dosage forms include:
A. Easy and accurate measurement
B. Bulky for storage and transport, potential for instability
C. Long shelf life
D. Reduced risk of errors
Excipients are inactive ingredients added to liquid dosage forms to:
A. Increase the price of the medication
B. Improve stability, taste, and other properties
C. Make the medication more addictive
D. Change the color of the medication for marketing purposes
Examples of excipients used in liquids include:
A. Only coloring agents
B. Solvents, suspending agents, sweeteners, thickeners, and preservatives
C. Only flavorings
D. Only active pharmaceutical ingredients (APIs)
Solubility enhancement techniques are used to:
A. Make medications more expensive
B. Improve the ability of a drug to dissolve in a liquid
C. Change the color of the medication
D. Mask the unpleasant taste of some medications
Common solubility enhancement techniques include:
A. Adding salt forms of the drug
B. Using particle size reduction
C. Employing complexation with cyclodextrins
D. All of the above
Controlling the pH of a liquid dosage form can impact:
A. The color of the medication only
B. The stability and solubility of the drug
C. The taste of the medication only
D. The marketing strategy for the medication
Preservatives are added to liquid dosage forms to:
A. Improve the taste
B. Prevent microbial growth
C. Change the color
D. Increase the potency
Alcohol is sometimes used as a solvent or preservative in liquid medications, but pharmacists should be aware of potential:
A. Increased marketing costs
B. Interactions with other medications or patient conditions
C. Faster absorption of the drug only
D. A more pleasant taste for patients
When dispensing liquid medications, pharmacists should provide patients with:
A. Just the medication bottle
B. Instructions on proper use, storage, and how to measure the correct dose
C. Information about potential side effects only
D. Recommendations for alternative therapies without explaining the benefits of the medication
Proper storage of liquid medications is crucial to ensure:
A. Faster absorption by the body
B. Potency, stability, and effectiveness
C. A more pleasant taste for the patient
D. Increased sales for the pharmacy
Liquid dosage forms can be a convenient option for some patients, but pharmacists need to consider the:
A. Brand name of the medication
B. Specific needs and preferences of the patient, along with the medication properties
C. Expiry date of the medication only
D. Marketing strategy for the liquid medication
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