A nurse is providing care for a client who has the syndrome of inappropriate antidiuretic hormone (SIADH). Which of the following findings is consistent with a diagnosis of SIADH?
Increased serum sodium
Decreased serum osmolality
Decreased urinary sodium
Decreased urine osmolality
The Correct Answer is B
Choice A reason: Increased Serum Sodium
Increased serum sodium, or hypernatremia, is not consistent with SIADH. SIADH typically results in hyponatremia, which is a low level of sodium in the blood due to excessive water retention. The excess antidiuretic hormone (ADH) causes the kidneys to retain water, diluting the sodium in the bloodstream. Therefore, increased serum sodium is not a characteristic finding in SIADH.
Choice B reason: Decreased Serum Osmolality
Decreased serum osmolality is a hallmark of SIADH3. Serum osmolality measures the concentration of solutes in the blood. In SIADH, the excessive release of ADH leads to water retention, diluting the blood and lowering serum osmolality. This is a key diagnostic feature of SIADH and helps differentiate it from other conditions.
Choice C reason: Decreased Urinary Sodium
Decreased urinary sodium is not typically seen in SIADH. In fact, patients with SIADH usually have increased urinary sodium levels. This is because the kidneys excrete more sodium in an attempt to balance the excess water retained due to high ADH levels. Therefore, decreased urinary sodium is not consistent with SIADH.
Choice D reason: Decreased Urine Osmolality
Decreased urine osmolality is also not consistent with SIADH. In SIADH, urine osmolality is typically increased because the kidneys concentrate the urine due to the action of ADH. The high levels of ADH cause the kidneys to reabsorb water, resulting in more concentrated urine. Thus, decreased urine osmolality is not a characteristic finding in SIADH.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason:
“I need to walk slowly as I lose my balance often” is a significant safety concern for a client with peripheral artery disease (PAD). Balance issues can increase the risk of falls, which can lead to serious injuries, especially in clients with compromised circulation. PAD can cause muscle weakness and pain, which may contribute to balance problems. Reporting this symptom to the provider is crucial for further evaluation and intervention to prevent falls and improve the client’s mobility and safety.
Choice B reason:
“I have a small-healed area on my spine that is painful” is not directly related to peripheral artery disease. While pain in different parts of the body can be concerning, this statement does not indicate an immediate safety risk associated with PAD. However, it is still important for the nurse to document and monitor this symptom, as it could be related to other underlying conditions.
Choice C reason:
“I don’t go out much because of the pain in my legs” is a common symptom of PAD known as claudication, which is pain caused by too little blood flow during exercise. While this statement indicates a significant impact on the client’s quality of life, it does not pose an immediate safety risk that requires urgent reporting. The nurse should provide education on managing claudication and encourage the client to engage in supervised exercise programs to improve circulation.
Choice D reason:
“It makes me sad that I can’t keep up with my grandchildren” reflects the emotional and psychological impact of PAD on the client’s life. While this is an important aspect of the client’s overall well-being, it does not represent an immediate safety concern. The nurse should address the client’s emotional health and consider referring them to a mental health professional for support.
Correct Answer is D
Explanation
Choice A reason:
Injections in the thigh are absorbed more slowly compared to the abdomen. The thigh is a common site for insulin injections, but it does not provide the fastest absorption rate. The absorption rate can be influenced by physical activity, as exercise can increase blood flow to the muscles, potentially speeding up insulin absorption. However, under normal conditions, the thigh is not the fastest site for insulin absorption.
Choice B reason:
Injections in the upper arm have a moderate absorption rate. The upper arm is another common site for insulin injections, but it is not the fastest. The absorption rate from the upper arm is generally faster than the thigh but slower than the abdomen. This site can be convenient for injections, especially for those who find it difficult to reach other areas.
Choice C reason:
Injections in the buttocks have the slowest absorption rate among the common injection sites. The buttocks are less commonly used for insulin injections due to the slower absorption rate and the difficulty some individuals may have in administering injections in this area. The high fat content in the buttocks slows down the absorption of insulin.
Choice D reason:
Injections in the abdomen provide the fastest absorption rate for insulin. The abdomen is the preferred site for many people with diabetes because it has a large surface area and is easy to access. The insulin injected into the abdominal area is absorbed quickly into the bloodstream, making it the most effective site for rapid-acting insulin. This is particularly important for managing blood sugar levels around meal times.

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