Nursing Elites

1. A client who has a new prescription for warfarin (Coumadin) asks the nurse how the medication works. What explanation should the nurse provide?

• A. It dissolves blood clots
• B. It prevents the blood from clotting
• C. It thins the blood
• D. It decreases the risk of infection

Correct answer: B

Rationale: The correct answer is B: 'It prevents the blood from clotting.' Warfarin works by inhibiting the synthesis of vitamin K-dependent clotting factors in the liver, thereby preventing the formation of blood clots. Choice A is incorrect because warfarin does not dissolve existing blood clots but prevents new ones from forming. Choice C is partially correct but not as specific as choice B in explaining how warfarin works. Choice D is unrelated to the mechanism of action of warfarin and is incorrect.

2. A client who has had three spontaneous abortions is requesting information about possible causes. The nurse's response should be based on which information?

• A. Chromosomal abnormalities are the most common cause of early spontaneous abortions
• B. Incompetent cervix can cause spontaneous abortions
• C. An infection can cause spontaneous abortions
• D. Nutritional deficiencies are the most common cause of early spontaneous abortions

Correct answer: A

Rationale: The correct answer is A: Chromosomal abnormalities are the most common cause of early spontaneous abortions. Spontaneous abortions, also known as miscarriages, often occur due to chromosomal abnormalities in the fetus. These abnormalities are a common cause of early pregnancy loss. Choice B is incorrect because an incompetent cervix typically leads to late miscarriages, not early spontaneous abortions. Choice C is incorrect as while infections can be a cause of spontaneous abortions, they are not the most common cause. Choice D is incorrect as nutritional deficiencies are not the most common cause of early spontaneous abortions.

3. Which client requires careful nursing assessment for signs and symptoms of hypomagnesaemia?

• A. A young adult client with intractable vomiting due to food poisoning
• B. A client who developed hyperparathyroidism in late adolescence
• C. A middle-aged male client in renal failure following an unsuccessful kidney transplant
• D. A female client who excessively consumes simple carbohydrates

Correct answer: C

Rationale: The correct answer is C. Clients in renal failure are at high risk for hypomagnesemia due to their impaired kidney function. Renal failure can lead to decreased excretion of magnesium, resulting in its buildup in the body and potential hypomagnesemia. This client requires careful nursing assessment for signs and symptoms of hypomagnesemia to prevent complications. Choices A, B, and D are not as directly associated with renal failure and its impact on magnesium levels. Intractable vomiting, hyperparathyroidism, and excessive consumption of simple carbohydrates may have other health implications but are not as strongly linked to hypomagnesemia as renal failure.

4. The nurse is preparing to administer an IM injection to a 6-month-old child. Which injection site is best for the nurse to use?

• A. Vastus lateralis
• B. Deltoid
• C. Ventrogluteal
• D. Dorsogluteal

Correct answer: A

Rationale: The vastus lateralis is the preferred site for IM injections in infants due to muscle development. In infants under 1 year old, the vastus lateralis muscle in the thigh is often used for IM injections due to its size and development. The deltoid muscle is typically used for adults, and the ventrogluteal and dorsogluteal sites are more commonly used for older children and adults. Therefore, the best choice for administering an IM injection to a 6-month-old child is the vastus lateralis.

5. A client is taught how to collect a 24-hour urine specimen. Which statement indicates understanding of the procedure?

• A. I should keep the urine specimen refrigerated.
• B. I need to start the collection in the morning after my first void.
• C. I will collect the urine for 24 hours and keep it on ice.
• D. I will start collecting the urine after discarding my first morning specimen.

Correct answer: D

Rationale: The correct way to collect a 24-hour urine specimen is to discard the first morning void and then start the collection. Choice A is incorrect because refrigeration is not typically necessary for a 24-hour urine specimen. Choice B is incorrect as the client needs to discard the first void. Choice C is incorrect; while collecting urine for 24 hours is correct, keeping it on ice is not standard procedure.

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