Easy NCLEX Questions
Question 1
What is the normal range for adult blood pressure?
A) 90/60 mmHg
B) 120/80 mmHg
C) 140/90 mmHg
D) 160/100 mmHg
Answer: B) 120/80 mmHg
Explanation: The normal blood pressure range for a healthy adult is
typically around 120/80 mmHg. This value can vary slightly depending
on individual health conditions, but it serves as a general guideline for
normal blood pressure.
Question 2
Which vitamin is essential for calcium absorption in the body?
A) Vitamin A
B) Vitamin B12
C) Vitamin C
D) Vitamin D
Answer: D) Vitamin D
Explanation: Vitamin D is crucial for the absorption of calcium in the
intestines. Without adequate vitamin D, the body cannot absorb
calcium effectively, which can lead to bone disorders such as
osteoporosis.
Question 3
What is the primary function of red blood cells?
, A) Fight infections
B) Transport oxygen
C) Clot blood
D) Produce antibodies
Answer: B) Transport oxygen
Explanation: Red blood cells contain hemoglobin, a protein that binds
to oxygen in the lungs and carries it to tissues throughout the body.
This is their primary function.
Question 4
Which organ is responsible for filtering blood and producing
urine?
A) Liver
B) Heart
C) Kidney
D) Pancreas
Answer: C) Kidney
Explanation: The kidneys filter waste products from the blood and
produce urine. They play a critical role in maintaining the body's fluid
and electrolyte balance.
Question 5
What is the normal range for adult respiratory rate?
A) 8-12 breaths per minute
B) 12-20 breaths per minute
C) 20-28 breaths per minute
D) 28-36 breaths per minute
, Answer: B) 12-20 breaths per minute
Explanation: The normal respiratory rate for a healthy adult is
between 12 and 20 breaths per minute. Rates outside this range may
indicate respiratory distress or other health issues.
Question 6
Which electrolyte imbalance is most likely to cause cardiac
arrhythmias?
A) Hypernatremia
B) Hypokalemia
C) Hypercalcemia
D) Hypomagnesemia
Answer: B) Hypokalemia
Explanation: Low potassium levels (hypokalemia) can lead to cardiac
arrhythmias because potassium is essential for maintaining normal
electrical activity in the heart.
Question 7
What is the primary purpose of administering insulin to a
diabetic patient?
A) Increase blood glucose levels
B) Decrease blood glucose levels
C) Increase blood pressure
D) Decrease blood pressure
Answer: B) Decrease blood glucose levels
Explanation: Insulin helps lower blood glucose levels by facilitating
the uptake of glucose into cells, where it can be used for energy.
Question 1
What is the normal range for adult blood pressure?
A) 90/60 mmHg
B) 120/80 mmHg
C) 140/90 mmHg
D) 160/100 mmHg
Answer: B) 120/80 mmHg
Explanation: The normal blood pressure range for a healthy adult is
typically around 120/80 mmHg. This value can vary slightly depending
on individual health conditions, but it serves as a general guideline for
normal blood pressure.
Question 2
Which vitamin is essential for calcium absorption in the body?
A) Vitamin A
B) Vitamin B12
C) Vitamin C
D) Vitamin D
Answer: D) Vitamin D
Explanation: Vitamin D is crucial for the absorption of calcium in the
intestines. Without adequate vitamin D, the body cannot absorb
calcium effectively, which can lead to bone disorders such as
osteoporosis.
Question 3
What is the primary function of red blood cells?
, A) Fight infections
B) Transport oxygen
C) Clot blood
D) Produce antibodies
Answer: B) Transport oxygen
Explanation: Red blood cells contain hemoglobin, a protein that binds
to oxygen in the lungs and carries it to tissues throughout the body.
This is their primary function.
Question 4
Which organ is responsible for filtering blood and producing
urine?
A) Liver
B) Heart
C) Kidney
D) Pancreas
Answer: C) Kidney
Explanation: The kidneys filter waste products from the blood and
produce urine. They play a critical role in maintaining the body's fluid
and electrolyte balance.
Question 5
What is the normal range for adult respiratory rate?
A) 8-12 breaths per minute
B) 12-20 breaths per minute
C) 20-28 breaths per minute
D) 28-36 breaths per minute
, Answer: B) 12-20 breaths per minute
Explanation: The normal respiratory rate for a healthy adult is
between 12 and 20 breaths per minute. Rates outside this range may
indicate respiratory distress or other health issues.
Question 6
Which electrolyte imbalance is most likely to cause cardiac
arrhythmias?
A) Hypernatremia
B) Hypokalemia
C) Hypercalcemia
D) Hypomagnesemia
Answer: B) Hypokalemia
Explanation: Low potassium levels (hypokalemia) can lead to cardiac
arrhythmias because potassium is essential for maintaining normal
electrical activity in the heart.
Question 7
What is the primary purpose of administering insulin to a
diabetic patient?
A) Increase blood glucose levels
B) Decrease blood glucose levels
C) Increase blood pressure
D) Decrease blood pressure
Answer: B) Decrease blood glucose levels
Explanation: Insulin helps lower blood glucose levels by facilitating
the uptake of glucose into cells, where it can be used for energy.
