Nokea
What is the best description for the abbreviation LDL?
- A. A group of denominations
- B. A type of lipoprotein
- C. Self-care mobility skills
- D. A certain digital value
Correct Answer: B
Rationale: The correct answer is B: A type of lipoprotein. LDL stands for Low-density lipoprotein, which is a type of lipoprotein that carries cholesterol through the bloodstream. LDL is often referred to as 'bad' cholesterol because high levels of LDL can lead to plaque buildup in the arteries, increasing the risk of heart disease and stroke. Choices A, C, and D are incorrect as they do not accurately describe the abbreviation LDL.
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Choose the meaning of the word 'mercurial' in the following sentence: 'Due to his mercurial temperament, Justin did not work well with others.'
- A. Continuous
- B. Unpredictable
- C. Mercenary
- D. Miraculous
Correct Answer: B
Rationale: The word 'mercurial' in this sentence means unpredictable or prone to sudden changes in mood or behavior. Justin's temperament can be characterized as unpredictable, which is causing him to not work well with others. Choice A, 'Continuous,' does not align with the meaning of 'mercurial' as it implies a steady, uninterrupted flow. Choice C, 'Mercenary,' refers to being primarily motivated by money or reward, which is not the context here. Choice D, 'Miraculous,' means extraordinary or remarkable, which is not the intended meaning in this sentence.
What is the crystalline compound that is a product of protein metabolism known as?
- A. uracil
- B. urine
- C. ureter
- D. urea
Correct Answer: D
Rationale: Urea is the correct answer. It is the crystalline compound formed in the liver from the breakdown of proteins, a byproduct of protein metabolism. Urea is excreted by the kidneys in the form of urine, aiding in the elimination of nitrogenous waste from the body. Uracil (Choice A) is a nitrogenous base found in RNA, not a product of protein metabolism. Urine (Choice B) is the liquid waste excreted by the kidneys but not the crystalline compound resulting from protein metabolism. Ureter (Choice C) is a duct that carries urine from the kidneys to the bladder, not the compound produced from protein metabolism.
Choose the meaning of the word 'exposure' in the following sentence: 'People with weakened immune systems should avoid exposure to flu.'
- A. Disclosure
- B. Pretense
- C. Contact
- D. Display
Correct Answer: C
Rationale: In this sentence, the word 'exposure' is used to refer to coming in contact with the flu virus. Therefore, in this context, the meaning of 'exposure' is related to 'contact.' Choices A, B, and D are incorrect. 'Disclosure' means revealing information, 'pretense' means pretending, and 'display' means to show or exhibit, none of which captures the intended meaning of 'exposure' in the sentence provided.
Choose the meaning of the word quandary in the following sentence: 'Too many potential job choices put Martin in a quandary.'
- A. A place where rocks are mined
- B. A journey of discovery
- C. A state of uncertainty
- D. A major attempt or trial
Correct Answer: C
Rationale: In this context, the word 'quandary' refers to a state of uncertainty or confusion caused by being faced with a difficult decision or choice. This matches the meaning of option C. Choices A, B, and D are incorrect because 'quandary' does not relate to a place where rocks are mined (A), a journey of discovery (B), or a major attempt or trial (D), but rather to a state of uncertainty or confusion.
If a patient's condition is deteriorating, he is ___________.
- A. getting worse
- B. improving gradually
- C. resisting medication
- D. failing to eat or drink
Correct Answer: A
Rationale: When a patient's condition is deteriorating, it means that their health is declining or worsening. This can involve a range of factors such as worsening symptoms, declining vital signs, or an overall decline in health status. In this context, the phrase 'getting worse' best describes the situation of a patient whose condition is deteriorating. Choices B, C, and D are incorrect because they do not reflect the concept of deterioration in a patient's health. Improving gradually (choice B) indicates a positive trend, resisting medication (choice C) suggests a behavioral response, and failing to eat or drink (choice D) points to a specific issue rather than a general decline in health.