A nurse is reviewing the laboratory results of a client who has a pressure ulcer. The nurse should identify an elevation in which of the following laboratory values as an indication that the client has developed an infection?

RBC count

WBC count

Potassium

BUN

Answer and Explanation

The Correct Answer is B

A.   An elevation in the red blood cell (RBC) count is not a specific indication of infection. It primarily reflects oxygen-carrying capacity.
B.   An elevation in the white blood cell (WBC) count is an indication of infection. When the body is fighting an infection, the number of white blood cells increases as part of the immune response.
C.   Potassium is an electrolyte and is not a specific marker for infection. Abnormal potassium levels may indicate a variety of conditions, but they do not directly indicate infection.
D.   Blood urea nitrogen (BUN) is a marker of kidney function and is not a specific indicator of infection. Elevated BUN levels can be seen in various kidney and non-kidney-related conditions.

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Correct Answer is D

Explanation

A. Dehydration is unlikely to cause blood-tinged urine. Dehydration can lead to concentrated urine, but it typically does not cause blood in the urine.
B. Pernicious anemia is a condition related to a deficiency in vitamin B12, which can lead to a decrease in red blood cell production. However, it is not directly associated with blood in the urine.
C. Bladder infection can cause blood in the urine, but it is more commonly associated with symptoms such as urinary frequency, urgency, and burning during urination. If blood is present, it is usually due to inflammation of the bladder lining.
D. Prostate enlargement, also known as benign prostatic hyperplasia (BPH), can cause blood-tinged urine. The prostate gland surrounds the urethra, and enlargement can lead to irritation and bleeding from the urinary tract.

A. Checking the pupillary response to light B. Eliciting the gag reflex C. Testing visual acuity D. Observing for facial symmetry

Correct Answer is A

Explanation

A. Cranial nerve III, also known as the oculomotor nerve, controls the muscles that move the eye and regulates the size of the pupil. Assessing the pupillary response to light helps evaluate the function of this nerve.
B. Eliciting the gag reflex is associated with cranial nerves IX (glossopharyngeal) and X (vagus), not cranial nerve III.
C. Testing visual acuity is primarily associated with cranial nerve II (optic nerve), not cranial nerve III.
D. Observing facial symmetry is important for assessing cranial nerve VII (facial nerve), not cranial nerve III.

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A nurse is reviewing the laboratory results of a client who has a pressure ulcer. The nurse should identify an elevation in which of the following laboratory values as an indication that the client has developed an infection?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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Explanation

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Correct Answer is A

Explanation

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