The nurse provides care for a client who reports burning pain, which is worse at night, in both feet. The client states the pressure of the sheets on the feet is "unbearable". Which reason is the most common cause of this type of pain?

Liver failure

Diabetes mellitus

Mercury toxicity

Vitamin B12 deficiency

Answer and Explanation

The Correct Answer is B

Choice A reason: Liver failure is not the most common cause of this type of pain because it is a condition where the liver loses its ability to perform its vital functions, such as detoxifying the blood, producing bile, and metabolizing nutrients. Liver failure can cause symptoms such as jaundice, ascites, or bleeding, but it does not usually cause burning pain in the feet.

Choice B reason: Diabetes mellitus is the most common cause of this type of pain because it is a condition where the blood glucose level is too high, either due to insufficient insulin production or reduced insulin sensitivity. Diabetes mellitus can cause damage to the nerves, especially in the peripheral areas, such as the feet, which is called diabetic neuropathy. Diabetic neuropathy can cause symptoms such as burning pain, numbness, or tingling in the feet, which can worsen at night or with pressure.

Choice C reason: Mercury toxicity is not the most common cause of this type of pain because it is a condition where the body is exposed to high levels of mercury, which is a toxic metal that can be found in some fish, dental fillings, or thermometers. Mercury toxicity can cause damage to the nervous system, causing symptoms such as tremors, memory loss, or mood changes, but it does not usually cause burning pain in the feet.

Choice D reason: Vitamin B12 deficiency is not the most common cause of this type of pain because it is a condition where the body does not have enough vitamin B12, which is a nutrient that is essential for the production of red blood cells and the maintenance of the nervous system. Vitamin B12 deficiency can cause symptoms such as anemia, fatigue, or weakness, but it does not usually cause burning pain in the feet.

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Correct Answer is D

Explanation

Choice A reason: Blood clots in the peripheral blood vessels are not a cause of anemia, but a complication of it. They may occur due to increased blood viscosity, reduced blood flow, or hypercoagulability. They may cause tissue ischemia, pain, and necrosis.

Choice B reason: Decrease in bone marrow platelet production is not a cause of anemia, but a result of it. It may occur due to bone marrow suppression, infiltration, or destruction. It may cause bleeding, bruising, and petechiae.

Choice C reason: Increase in the number of circulating reticulocytes is not a cause of anemia, but a sign of it. Reticulocytes are immature red blood cells that are released from the bone marrow to compensate for the loss of mature red blood cells. They indicate a regenerative response to anemia.

Choice D reason: Redistribution of blood to the heart and brain is a compensatory mechanism for anemia. It occurs to maintain adequate oxygen delivery to the vital organs. It causes vasoconstriction and shunting of blood away from the skin and mucous membranes, resulting in pallor.

Vasoconstriction: What Is It, Symptoms, Causes & Treatment

A. Serum osmolality 380 mOsm/kg B. Urine output of 500 mL in 24 hours C. Weight gain of 5 pounds in 48 hours D. Decreased serum hematocrit levels

Correct Answer is A

Explanation

Choice A reason: Serum osmolality 380 mOsm/kg is the expected finding because it is a sign of dehydration, which is a common complication of diabetes insipidus. Diabetes insipidus is a condition where the body does not produce enough antidiuretic hormone (ADH), which is a hormone that helps the kidneys retain water and regulate the fluid balance in the body. A severe traumatic brain injury can damage the pituitary gland or the hypothalamus, which are parts of the brain that produce and secrete ADH. Without enough ADH, the kidneys produce large amounts of diluted urine, which causes the loss of water and electrolytes from the body. This increases the concentration of solutes in the blood, which is measured by the serum osmolality. A normal serum osmolality is between 275 and 295 mOsm/kg, while a high serum osmolality is above 300 mOsm/kg.

Choice B reason: Urine output of 500 mL in 24 hours is not the expected finding because it is a sign of oliguria, which is a low urine output. Oliguria can be caused by various factors, such as dehydration, kidney failure, or urinary obstruction, and can result in symptoms such as fluid retention, swelling, or electrolyte imbalance. Oliguria is not a common finding in diabetes insipidus, because the condition causes polyuria, which is a high urine output. Polyuria can be defined as urine output of more than 3 liters in 24 hours, or more than 200 mL per hour.

Choice C reason: Weight gain of 5 pounds in 48 hours is not the expected finding because it is a sign of fluid overload, which is a condition where the body retains too much fluid, which can cause edema, hypertension, and heart failure. Fluid overload can be caused by various factors, such as heart failure, kidney failure, or liver failure, and can result in symptoms such as shortness of breath, chest pain, or fatigue. Fluid overload is not a common finding in diabetes insipidus, because the condition causes dehydration, which is a loss of fluid from the body. Dehydration can cause weight loss, not weight gain.

Choice D reason: Decreased serum hematocrit levels is not the expected finding because it is a sign of anemia, which is a condition where the blood has a low level of hemoglobin, which is the protein that carries oxygen in the red blood cells. Anemia can be caused by various factors, such as blood loss, iron deficiency, or bone marrow failure, and can result in symptoms such as fatigue, weakness, or pallor. Anemia is not a common finding in diabetes insipidus, because the condition does not affect the production or function of the red blood cells. Diabetes insipidus can cause increased serum hematocrit levels, not decreased, because the loss of water from the body can increase the proportion of red blood cells in the blood.

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The nurse provides care for a client who reports burning pain, which is worse at night, in both feet. The client states the pressure of the sheets on the feet is "unbearable". Which reason is the most common cause of this type of pain?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

During assessment of a client diagnosed with severe anemia, the nurse notes pallor of the skin and mucous membranes. Which explanation is the best rationale for this finding?

Correct Answer is D

Explanation

A client developed diabetes insipidus as a result of a severe traumatic brain injury. Which finding does the nurse expect to observe?

Correct Answer is A

Explanation

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