NCLEX-Pharma Exam Guide: Pharmacology Mastery for NCLEX-RN Success
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NCLEX-Pharma
ExamName: NCLEX Pharmacology
Exam Version: 6.0
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Question 1. (Single Select)
One gallon would equal 128 fluid ounces, 16 cups, _____ pints, and 4 quarts.
A: 16
B: 8
C: 10
D: 6
Answer: B
Explanation:
To answer the question correctly, one must understand the standard measurements used in the United
States for volumes of liquids. A gallon is a unit used to measure fluid capacity. It is commonly used in the
US to measure volumes of liquids. In the US customary system, one gallon equals 128 fluid ounces, 16
cups, 8 pints, and 4 quarts.
Breaking down one gallon into smaller units: - **Fluid ounces:** There are 128 fluid ounces in a gallon. This
is because one cup holds 8 fluid ounces and there are 16 cups in a gallon (8 x 16 = 128). - **Cups:** There
are 16 cups in a gallon, which is a straightforward conversion widely used in cooking and baking. -
**Pints:** To find the number of pints in a gallon, we need to know that one pint equals 2 cups. Since there
are 16 cups in a gallon, dividing by 2 gives us 8 pints (16 / 2 = 8). - **Quarts:** There are 4 quarts in a
gallon. This is derived from the fact that each quart consists of 2 pints, and we have already established
that there are 8 pints in a gallon (8 / 2 = 4).
Therefore, in the statement "One gallon equals 128 fluid ounces, 16 cups, _____ pints, and 4 quarts," the
blank should be filled with the number 8, representing the 8 pints in one gallon. This conversion is part of
the standard measurement system in the United States and is essential for various applications, including
cooking, automotive fluids, and other liquid measurements.
Question 2. (Single Select)
Infants with a cold can be treated with a saline solution via bulb syringe prior to eating. This solution would
be prepared in which of the following ways?
A: 1/2 tsp salt to 8 oz water
B: 1/4 tsp salt to 4 oz water
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C: 1/2 tsp salt to 4 oz water
D: 1/4 tsp salt to 8 oz water
Answer: D
Explanation:
When preparing a saline solution for infants to alleviate symptoms of a cold, it is essential to ensure that
the solution is not overly concentrated, as this can irritate the delicate nasal passages of babies. The
correct concentration for a homemade saline solution is typically 1/4 teaspoon of non-iodized salt dissolved
in 8 ounces of water. This concentration closely mimics the salt content of the body's own fluids, making it
gentle enough for infant use.
To prepare the solution, start by measuring 1/4 teaspoon of non-iodized salt. It's important to use
non-iodized salt because iodized salt can irritate the nasal lining. Next, measure 8 ounces of distilled or
previously boiled water to ensure that it is sterile. Mix the salt into the water until it is completely dissolved.
Once the saline solution is prepared, it can be administered with a bulb syringe, a small device used to
suction fluids. Before feeding, using the bulb syringe gently introduces the saline into the infant’s nasal
passages. This helps to thin and loosen mucus, making it easier for the infant to breathe and feed. It is
important to use the saline solution gently and to avoid excessive force, which could cause discomfort or
injury to the infant’s nasal passages.
This method of clearing the nasal passages is particularly useful before feeding because it can help the
infant breathe more easily during meals. An infant who can breathe freely is more likely to feed efficiently
and be comfortable during and after feeding. In summary, the correct way to prepare a saline solution for
infants with a cold is by dissolving 1/4 teaspoon of non-iodized salt in 8 ounces of sterile water. This
solution can be administered safely with a bulb syringe to help clear the nasal passages, especially useful
before meals.
Question 3. (Single Select)
In which of the following years was APAP (acetaminophen) first used?
A: 1963
B: 1893
C: 1887
D: 1933
Answer: B
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Explanation:
The correct answer to the question regarding when acetaminophen (APAP), also known as Tylenol, was
first used is 1893. APAP is a widely used analgesic (pain reliever) and antipyretic (fever reducer). Despite
its widespread use today, understanding its history and impact on health is crucial for safe consumption.
Acetaminophen was first synthesized by Harmon Northrop Morse in 1878. However, it was not until 1893
that its clinical application began when it was introduced as an analgesic and fever reducer. The
introduction marked a significant advancement in over-the-counter medication, offering a safer alternative
to the then-commonly used pain relievers such as aspirin and opioids, which had higher toxicity levels and
more severe side effects.
The popularity of acetaminophen significantly increased in 1949 when it was marketed under the brand
name Tylenol. It was promoted as a pain reliever that was safer for children, and people allergic to aspirin,
and became a common household item. Its ease of access and perceived safety contributed to its
widespread use.
However, despite its benefits, acetaminophen is not without risks. If taken in excessive amounts, it can lead
to severe liver damage and acute liver failure. This condition, often referred to as acetaminophen-induced
hepatotoxicity, is a critical concern and the leading cause of acute liver failure in the United States.
Additionally, there is a risk of nephropathy (kidney damage), particularly when consumed in large doses or
in chronic overuse.
It's essential for users to adhere to recommended dosages and be aware of the acetaminophen content in
combined medications to avoid overdose. Public education campaigns and labeling requirements have
been enhanced over the years to increase public awareness of these risks.
In conclusion, while acetaminophen was first used in 1893 and has become one of the most commonly
used pain relievers globally, it must be used judiciously and with awareness of its potential risks to prevent
serious health complications.
Question 4. (Single Select)
The adverse effects of progestins could include all of the following except?
A: Dysmenorrhea
B: Depression
C: Gallbladder disease
D: Amenorrhea
Answer: C
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Explanation:
Progestins are synthetic hormones used in various hormonal contraceptives and hormone replacement
therapies. They mimic the effects of the naturally occurring hormone progesterone in the body. While
progestins are beneficial for numerous therapeutic reasons, such as preventing pregnancy, treating
endometriosis, and managing menopausal symptoms, they are also associated with several potential
adverse effects. Understanding these effects is crucial for assessing the overall impact of progestin use on
health.
Among the known adverse effects of progestins are dysmenorrhea and amenorrhea. Dysmenorrhea refers
to painful menstruation, which can be exacerbated by hormonal imbalances caused by progestins.
Amenorrhea, the absence of menstruation, can also occur as progestins may alter the normal menstrual
cycle, either as a therapeutic effect or a side effect depending on the context of use.
Depression is another documented side effect associated with progestin use. Hormonal changes induced
by progestins can affect mood and emotional state, potentially leading to depression in some individuals. It
is essential for patients and healthcare providers to monitor mental health when using progestin-containing
therapies.
Thromboembolic disorders, which include conditions like deep vein thrombosis and pulmonary embolism,
are serious potential side effects of progestins. These disorders occur due to the formation of blood clots
that can block veins or arteries. Progestins can increase the risk of clotting, making it a significant concern,
particularly for individuals with other risk factors for thromboembolic events.
Gallbladder disease, however, is not typically listed as a direct adverse effect of progestins. While
hormonal fluctuations and changes can impact various aspects of health, including liver and gallbladder
function, the direct linkage between progestins and gallbladder disease is not as clearly established as it is
with other side effects like thromboembolic disorders or mood changes.
In conclusion, when evaluating the adverse effects of progestin, dysmenorrhea, depression, amenorrhea,
and thromboembolic disorders are all recognized concerns. However, gallbladder disease is not commonly
included in this list, making it the correct answer to the question of which effect is not typically associated
with progestins. This underscores the importance of comprehensive patient assessment and monitoring
when prescribing and using progestin-based therapies to mitigate potential adverse outcomes effectively.
Question 5. (Single Select)
1 ml would equal how many drops (gtt)?
A: 10 gtts
B: 15-16 gtts
C: 5 gtts
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D: 30-35 gtts
Answer: B
Explanation:
The conversion of milliliters (ml) to drops (gtt) can vary depending on the device or method used for
dispensing the liquid and the viscosity of the fluid itself. Generally, the standard value often used in
calculations is that 1 ml equals approximately 15-20 drops. This is a commonly accepted range in many
medical and informal settings.
However, the specific number of drops per milliliter can differ based on the dropper or the drop forming
device used. For example, droppers in a medical setting like a hospital or a laboratory might be calibrated
differently compared to those used at home. In the pharmaceutical practice, especially using the
apothecary system, it is often standardized that 1 ml is approximately 15-16 drops. This standardization
helps in maintaining consistency in medication dosing.
When considering household droppers, the size of the drop can be less precise due to the variability in the
manufacturing of these droppers. Despite this variability, the approximation of 15-16 drops per ml is still
commonly used for simplicity unless a specific dropper is known to deviate significantly from this norm.
It's important to note that these conversions are approximations and should not be used for the precise
dosing of critical medications where exact dosing is crucial. In such cases, specific calibrated droppers or
dispensing tools that provide more exact measurements should be used. Always consult with a healthcare
provider or follow the specific instructions provided with the medication or the dropper when accuracy is
critical.
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