A client is admitted to the hospital with suspected rheumatic endocarditis. Which of the following laboratory tests would assist in confirming the diagnosis?

Liver enzymes

Serum albumin

Throat culture

Arterial blood gases

Answer and Explanation

The Correct Answer is C

Title: Choice A reason: Liver enzymes Liver enzymes are proteins that speed up chemical reactions in your body. They include alanine transaminase (ALT), aspartate transaminase (AST), and alkaline phosphatase (ALP). High levels of liver enzymes in the blood can indicate liver disease. However, rheumatic endocarditis is a heart condition, not a liver condition. Therefore, while liver enzymes are important for diagnosing liver conditions, they would not assist in confirming a diagnosis of rheumatic endocarditis.

Title: Choice B reason: Serum albumin Serum albumin is a type of protein that your liver and kidneys produce to help your body maintain fluid balance and function. Low or high albumin levels can indicate liver disease, kidney disease, or nutritional deficiency. However, rheumatic endocarditis is a heart condition, not a liver or kidney condition. Therefore, while serum albumin is important for diagnosing liver and kidney conditions, it would not assist in confirming a diagnosis of rheumatic endocarditis.

Title: Choice C reason: Throat culture A throat culture is a lab test used to find and identify germs in the back of your mouth that are making you sick. It can diagnose infections like strep throat, gonorrhea, thrush, diphtheria, and pertussis. Rheumatic endocarditis is often caused by a streptococcal infection, which can be identified through a throat culture. Therefore, a throat culture would assist in confirming a diagnosis of rheumatic endocarditis.

Title: Choice D reason: Arterial blood gases An arterial blood gas (ABG) test measures the levels of oxygen and carbon dioxide in your blood as well as the pH balance in your blood. It helps diagnose and monitor conditions that affect your respiratory, circulatory, and metabolic systems. However, rheumatic endocarditis is a heart condition that is often caused by a bacterial infection. Therefore, while an ABG test is important for diagnosing conditions that affect your respiratory, circulatory, and metabolic systems, it would not assist in confirming a diagnosis of rheumatic endocarditis.

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Correct Answer is C

Explanation

Choice A reason: Metabolic alkalosis would present with an elevated pH and HCO3, which is not the case here.

Choice B reason: Respiratory alkalosis would present with an elevated pH and a decreased PaCO2, which is not the case here.

Choice C reason: Metabolic acidosis is indicated by a decreased pH and HCO3, which aligns with the ABG findings provided.

Choice D reason: Respiratory acidosis would present with a decreased pH and an elevated PaCO2, which is not the case here.

Correct Answer is ["125"]

Explanation

- Step 1: Identify the required dose in micrograms (mcg). The client is scheduled to receive 125 mcg of digoxin.

- Step 2: Identify the concentration of the available tablet. The available tablet contains 0.25 mg of digoxin.

- Step 3: Convert the tablet concentration from mg to mcg. We know that 1 mg = 1000 mcg. So, 0.25 mg = 0.25 × 1000 mcg = 250 mcg.

- Step 4: Calculate the number of tablets needed to deliver the required dose. We can set up a proportion to solve for this:

- 250 mcg is to 1 tablet as 125 mcg is to X tablets.

- In other words, 250 mcg : 1 tablet = 125 mcg : X tablets.

- Step 5: Solve for X using cross-multiplication and division:

- Cross-multiplication gives us: 250 mcg × X tablets = 125 mcg × 1 tablet.

- Simplifying this gives us: 250X = 125.

- Dividing both sides by 250 gives us: X = 125 ÷ 250.

- Calculating the division gives us: X = 0.5.

So, the nurse should administer 0.5 tablets per dose to deliver the required dose of 125 mcg.

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A client is admitted to the hospital with suspected rheumatic endocarditis. Which of the following laboratory tests would assist in confirming the diagnosis?

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Naxlex Comprehensive Predictor Exams

A nurse is reviewing a client's laboratory report of arterial blood gas (ABG) findings: pH 7.28, HCO3 18, and PaCO2 36. Which of the following conditions should the nurse anticipate when interpreting these findings?

Correct Answer is C

Explanation

Correct Answer is ["125"]

Explanation

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