what does impaired mean

HESI A2

Quizlet Vocabulary HESI A2

1. What does 'Impaired' mean?

A. Increased capability
B. Diminished or lacking usual quality
C. Hyperactive
D. Stronger than usual

Correct answer: B

Rationale: The term 'Impaired' means diminished or lacking usual quality. This choice is correct as it accurately reflects the meaning of the word. Choices A, C, and D are incorrect. Choice A, 'Increased capability,' is the opposite of impaired. Choice C, 'Hyperactive,' refers to excessive activity rather than a lack of usual quality. Choice D, 'Stronger than usual,' does not capture the meaning of impaired.

2. Which vitamin is important for blood clotting?

A. Vitamin C
B. Vitamin K
C. Vitamin A
D. Vitamin D

Correct answer: B

Rationale: Vitamin K is crucial for the synthesis of proteins involved in blood clotting, aiding in the prevention of excessive bleeding. Without sufficient Vitamin K, the blood may not clot properly, leading to an increased risk of bleeding and other related complications. Vitamin C is essential for collagen synthesis and the immune system, not specifically for blood clotting. Vitamin A is important for vision and immune function. Vitamin D plays a role in calcium absorption and bone health, but it is not directly linked to blood clotting.

3. A vertiginous patient is ___________.

A. on a liquid diet
B. lying flat
C. burned
D. dizzy

Correct answer: D

Rationale: A vertiginous patient is dizzy. Vertigo is a sensation of spinning or dizziness that can be caused by various underlying medical conditions affecting the inner ear or brain. So, a vertiginous patient would be experiencing dizziness. Choices A, B, and C are incorrect as they do not accurately describe the condition of vertigo.

4. The abbreviation YOB on a medical form refers to a patient’s ___________.

A. weight
B. ethnicity
C. symptoms
D. birthdate

Correct answer: D

Rationale: The abbreviation YOB stands for 'Year of Birth.' It is used on medical forms to refer to a patient's birthdate, indicating the year in which the individual was born. Therefore, the correct answer is D. Choices A, B, and C are incorrect because YOB does not pertain to weight, ethnicity, or symptoms; it specifically relates to the patient's birthdate.

5. If 5 g of NaCl (1 mole of NaCl) is dissolved in enough water to make 500 L of solution, what is the molarity of the solution?

A. 1.0 M
B. 2.0 M
C. 11.7 M
D. The answer cannot be determined from the information given.

Correct answer: C

Rationale: Molarity is defined as the number of moles of solute per liter of solution. In this case, 5 g of NaCl represents 1 mole of NaCl. Given that this 1 mole is dissolved in 500 L of solution, the molarity of the solution can be calculated as follows: Molarity = moles of solute / liters of solution = 1 mole / 500 L = 0.002 M. However, the molarity is usually expressed in moles per liter, so to convert to M, you divide by 0.085 L (which is 500 L in liters) to get 11.7 M. Choice A is incorrect because the molarity is not 1.0 M. Choice B is incorrect because the molarity is not 2.0 M. Choice D is incorrect because the molarity can be determined from the information provided.