Nursing Elites

1. A client with diabetes mellitus is experiencing polyuria, polydipsia, and polyphagia. What do these symptoms indicate?

• A. Hypoglycemia
• B. Diabetic ketoacidosis (DKA)
• C. Hyperosmolar hyperglycemic state (HHS)
• D. Insulin shock

Correct answer: B

Rationale: Polyuria, polydipsia, and polyphagia are classic signs of diabetic ketoacidosis (DKA), which occurs due to a combination of hyperglycemia and ketone production. Hypoglycemia (Choice A) is characterized by low blood sugar levels, leading to symptoms like confusion, shakiness, and sweating, which are different from the symptoms described in the scenario. Hyperosmolar hyperglycemic state (HHS) (Choice C) typically presents with severe hyperglycemia, dehydration, and altered mental status, rather than the triad of symptoms mentioned. Insulin shock (Choice D) refers to a severe hypoglycemic reaction due to excessive insulin, manifesting with confusion, sweating, and rapid heartbeat, not the symptoms seen in the client with diabetes mellitus described in this scenario.

2. The nurse is teaching a client how to collect a sputum specimen. Which steps should the nurse instruct the client to follow when collecting sputum?

• A. Breathe deeply, followed by swallowing.
• B. Breathe deeply, followed by spitting into a cup.
• C. Breathe deeply, followed by coughing up the sputum.
• D. Breathe deeply, followed by clearing the throat.

Correct answer: C

Rationale: The correct answer is to instruct the client to breathe deeply followed by coughing up the sputum. This method ensures that the specimen is collected from the lower respiratory tract and is not contaminated by saliva. Choice A (swallowing) does not result in sputum collection, while choice B (spitting into a cup) may lead to saliva contamination. Choice D (clearing the throat) is not an effective way to collect sputum as it may involve getting rid of saliva, not sputum.

3. What is the most common clinical manifestation of coarctation of the aorta?

• A. Clubbing of the digits
• B. Upper extremity hypertension
• C. Pedal edema and portal congestion
• D. Loud systolic ejection murmur

Correct answer: B

Rationale: The correct answer is B: Upper extremity hypertension. Coarctation of the aorta leads to increased blood pressure in the upper extremities. The pressure in the arms is typically 20 mm Hg higher than in the legs. Choice A, clubbing of the digits, is not a common clinical manifestation of coarctation of the aorta. Choice C, pedal edema, and portal congestion are more suggestive of conditions like heart failure rather than coarctation of the aorta. Choice D, loud systolic ejection murmur, can be heard in conditions like aortic stenosis, but it is not the most common clinical manifestation of coarctation of the aorta.

4. A male client with acquired immune deficiency syndrome (AIDS) and Pneumocystis carinii pneumonia has a CD4+ T cell count of 200 cells/microliter. The client asks the nurse why he keeps getting these massive infections. Which pathophysiologic mechanism should the nurse describe in response to the client's question?

• A. Bone marrow suppression of white blood cells causes insufficient cells to phagocytize organisms.
• B. Exposure to multiple environmental infectious agents overburdens the immune system until it fails.
• C. The humoral immune response lacks B cells that form antibodies and opportunistic infections result.
• D. Inadequate numbers of T lymphocytes are available to initiate cellular immunity and macrophages.

Correct answer: D

Rationale: With a CD4+ T cell count of 200 cells/microliter, the client's immune system is severely compromised, leading to opportunistic infections.

5. A 55-year-old client with symptoms of osteoarthritis asks which form of exercise would be most beneficial. What is the best response by the nurse?

• A. Walking.
• B. Running.
• C. Swimming.
• D. Weight lifting.

Correct answer: C

Rationale: The correct answer is C: 'Swimming.' Swimming is a low-impact exercise that helps maintain joint mobility and reduce pain in clients with osteoarthritis. Unlike running or weight lifting, swimming is gentle on the joints, making it an ideal choice for individuals with osteoarthritis. Walking can be beneficial too, but swimming is often preferred due to its low-impact nature. Running and weight lifting may exacerbate joint pain and should be avoided by individuals with osteoarthritis.

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