A nurse is assessing a client with suspected hypovolemic shock. Which finding is the earliest indicator of this condition?
Hypotension
Tachycardia
Cool, clammy skin
Decreased urine output
The Correct Answer is B
Choice A reason: Hypotension occurs in hypovolemic shock when blood volume loss exceeds 15–30%, indicating a later stage. Compensatory mechanisms like vasoconstriction maintain blood pressure initially. Tachycardia precedes hypotension as the body responds to reduced volume, making it a less early sign than increased heart rate.
Choice B reason: Tachycardia is the earliest sign of hypovolemic shock, occurring with 5–15% blood volume loss. The sympathetic nervous system increases heart rate to compensate for reduced cardiac output, maintaining perfusion. This precedes other signs like hypotension or oliguria, making it the first detectable indicator in shock assessment.
Choice C reason: Cool, clammy skin results from vasoconstriction in hypovolemic shock, a compensatory response to maintain blood pressure. This occurs after tachycardia, as the body prioritizes increasing heart rate to compensate for volume loss. Skin changes are a later sign compared to the initial cardiovascular response of tachycardia.
Choice D reason: Decreased urine output (oliguria) occurs in hypovolemic shock when renal perfusion decreases, typically after significant volume loss. This is a later sign, as the kidneys receive reduced blood flow after compensatory mechanisms like tachycardia fail. Tachycardia appears earlier, as it is the body’s initial response to volume loss.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason: Weight gain is associated with hypothyroidism, not hyperthyroidism. Hyperthyroidism increases metabolic rate, leading to weight loss due to increased calorie expenditure. The thyroid hormones accelerate metabolism, causing catabolism, which contrasts with the client’s likely symptom of weight loss, not gain, in hyperthyroidism.
Choice B reason: Bradycardia, or slow heart rate, occurs in hypothyroidism due to decreased metabolic rate. Hyperthyroidism causes tachycardia, as elevated thyroid hormones increase sympathetic activity, raising heart rate and cardiac output. The client’s symptoms would likely include a rapid heart rate, not bradycardia, in this condition.
Choice C reason: Heat intolerance is a classic symptom of hyperthyroidism due to increased metabolic rate from elevated thyroid hormones. This causes excessive heat production, leading to sweating and discomfort in warm environments. The symptom aligns with the hypermetabolic state, making it the most likely to be reported.
Choice D reason: Constipation is associated with hypothyroidism, where decreased metabolism slows gastrointestinal motility. Hyperthyroidism increases motility, often causing diarrhea. The client with hyperthyroidism is unlikely to report constipation, as their condition accelerates digestive processes, contrasting with the slowed motility seen in hypothyroidism.
Correct Answer is C
Explanation
Choice A reason: Mild itching may indicate a minor allergic reaction to a transfusion, caused by sensitivity to donor plasma proteins. While concerning, it is not immediately life-threatening and can often be managed with antihistamines. Severe symptoms like fever and chills take priority, as they suggest more dangerous reactions like hemolytic or febrile responses.
Choice B reason: A slight increase in heart rate can occur due to anxiety or fluid volume changes during transfusion but is not specific to a transfusion reaction. It is less urgent than fever and chills, which indicate a potentially severe reaction like hemolysis or infection, requiring immediate cessation of the transfusion.
Choice C reason: Sudden chills and fever during a transfusion suggest a febrile non-hemolytic reaction or, more critically, a hemolytic reaction or sepsis. These can cause systemic inflammation, hemolysis, or shock, requiring immediate stopping of the transfusion, assessment, and intervention to prevent life-threatening complications like renal failure or disseminated intravascular coagulation.
Choice D reason: Minor redness at the IV site may indicate local irritation or phlebitis, not a systemic transfusion reaction. It is less urgent than systemic symptoms like fever and chills, which signal severe reactions requiring immediate action. Local symptoms can be monitored and managed without stopping the transfusion.
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