Nursing Elites

1. What is the function of the enzyme lactase in the digestive system?

• A. Breaks down lactose into glucose and galactose
• B. Breaks down proteins into amino acids
• C. Converts starch into maltose
• D. Breaks down fats into fatty acids

Correct answer: A

Rationale: The correct answer is A: 'Breaks down lactose into glucose and galactose.' Lactase is an enzyme in the small intestine that specifically breaks down lactose, the sugar found in milk, into glucose and galactose for absorption. Choice B is incorrect because proteins are broken down into amino acids by protease enzymes. Choice C is incorrect because the enzyme amylase converts starch into maltose. Choice D is incorrect as lipase enzymes break down fats into fatty acids.

2. The mother of a 9-month-old child diagnosed with respiratory syncytial virus (RSV) yesterday calls the clinic to inquire if it will be all right to take her infant to a friend's child's first birthday party the following day. Which response should the nurse provide?

• A. Do not expose other children as the virus is very contagious even without direct contact
• B. The child will no longer be contagious, no need to take any further precautions
• C. The child can be around other children but should wear a mask
• D. Make sure there are no children under the age of 5 months around the infected child

Correct answer: A

Rationale: The correct response is A: 'Do not expose other children as the virus is very contagious even without direct contact.' RSV is highly contagious, especially in young children. Allowing the infected child to attend a birthday party can put other children at risk of contracting the virus. Choice B is incorrect as RSV can remain contagious for a period of time. Choice C is not sufficient, as wearing a mask may not entirely prevent the spread of the virus. Choice D is inaccurate, as children under 5 months are not the only ones susceptible to RSV; all young children are at risk.

3. A client who is post-operative from a spinal fusion surgery reports a sudden onset of severe headache when sitting up. What is the nurse’s priority action?

• A. Administer pain medication.
• B. Lay the client flat and notify the healthcare provider.
• C. Encourage the client to drink more fluids.
• D. Assess the client’s surgical site for drainage.

Correct answer: B

Rationale: In this scenario, the correct action is to lay the client flat and notify the healthcare provider. A severe headache in a post-operative spinal fusion patient can indicate a spinal fluid leak, which is a medical emergency. By laying the client flat, the nurse helps reduce symptoms by decreasing pressure differentials. Administering pain medication without further assessment or intervention is inappropriate before identifying the cause of the headache. Encouraging the client to drink more fluids is not the priority when a serious complication like a spinal fluid leak is suspected. While assessing the surgical site is important, it is not the priority when a potentially life-threatening complication is suspected.

4. Which of the following best describes the role of insulin in the body?

• A. Insulin helps break down glucose into energy for the body
• B. Insulin facilitates the movement of glucose into cells
• C. Insulin converts excess glucose into fat for storage
• D. Insulin increases the breakdown of protein into amino acids

Correct answer: B

Rationale: The correct answer is B: Insulin facilitates the movement of glucose into cells. Insulin is a hormone that helps regulate blood sugar levels by promoting the uptake of glucose from the bloodstream into cells, where it can be used for energy production. Choice A is incorrect because insulin doesn't break down glucose but rather helps cells take up glucose. Choice C is incorrect as insulin does not directly convert glucose into fat; excess glucose is stored as fat by other processes. Choice D is incorrect as insulin does not increase the breakdown of protein into amino acids; its primary role is in glucose metabolism.

5. The nurse is providing care for a client with type 1 diabetes mellitus who is receiving NPH insulin. The nurse notices that the client's evening glucose levels are consistently above 260 mg/dl. What does this indicate?

• A. States that her feet are constantly cold and feel numb
• B. A wound on the ankle that starts to drain and becomes painful
• C. Consecutive evening serum glucose greater than 260 mg/dl
• D. Reports nausea in the morning but still able to eat breakfast

Correct answer: C

Rationale: High evening glucose levels suggest that the current insulin dosage may be inadequate to control the client's blood sugar levels effectively. This indicates poor glycemic control and the need for a possible adjustment in the insulin regimen. Option A describes symptoms of peripheral neuropathy, which are not directly related to the elevated glucose levels but may be a long-term complication of diabetes. Option B describes a wound infection, which is not directly related to the client's high glucose levels. Option D mentions morning nausea, which could be due to various causes and is not directly related to the high evening glucose levels.

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