Nursing practice questions with comprehensive rationales
NurseDive Free Nursing Practice Question
A client with a history of hypertension has a urine analysis ordered. Which finding would warrant additional assessment?
A. Negative for glucose
Negative glucose in urine is normal, as the kidneys reabsorb glucose unless blood levels exceed 180 mg/dL (e.g., in diabetes). In hypertension, this finding does not indicate renal damage or require further assessment, as it aligns with normal renal function and glucose handling.
B. Negative for white blood cells
Negative white blood cells in urine suggest no urinary tract infection or inflammation, a normal finding. In hypertensive patients, this does not signal kidney damage or other complications, so no additional assessment is needed, as it indicates an absence of acute inflammatory processes.
C. Positive for protein
Proteinuria (positive protein) indicates potential renal damage, common in hypertension due to glomerular injury from elevated pressure. It suggests impaired filtration, allowing proteins like albumin to leak into urine. This finding warrants further assessment, such as quantifying protein levels or evaluating kidney function, making it the correct choice.
D. Positive for creatinine
Creatinine in urine is normal, as it is a waste product excreted by the kidneys. While serum creatinine assesses renal function, urinary creatinine presence is expected and does not indicate pathology in hypertension, so it does not require additional assessment in this context.
This question is an excerpt from Nurse Dive's nursing test bank - Pathophamacology Proctored Exam (Examplify). Take the full exam now
Full Explanation
Choice A reason: Negative glucose in urine is normal, as the kidneys reabsorb glucose unless blood levels exceed 180 mg/dL (e.g., in diabetes). In hypertension, this finding does not indicate renal damage or require further assessment, as it aligns with normal renal function and glucose handling.
Choice B reason: Negative white blood cells in urine suggest no urinary tract infection or inflammation, a normal finding. In hypertensive patients, this does not signal kidney damage or other complications, so no additional assessment is needed, as it indicates an absence of acute inflammatory processes.
Choice C reason: Proteinuria (positive protein) indicates potential renal damage, common in hypertension due to glomerular injury from elevated pressure. It suggests impaired filtration, allowing proteins like albumin to leak into urine. This finding warrants further assessment, such as quantifying protein levels or evaluating kidney function, making it the correct choice.
Choice D reason: Creatinine in urine is normal, as it is a waste product excreted by the kidneys. While serum creatinine assesses renal function, urinary creatinine presence is expected and does not indicate pathology in hypertension, so it does not require additional assessment in this context.
Similar Questions
A nurse is caring for a client who sustained significant crush injuries and is being treated for acute renal injury. What is the pathophysiology behind the development of this renal injury?
A. High levels of myoglobin obstructed the tubules and caused intra-renal damage
Crush injuries release myoglobin from damaged muscles, causing rhabdomyolysis. Myoglobin precipitates in renal tubules, obstructing them and leading to acute tubular necrosis, an intra-renal acute kidney injury. This toxic effect, combined with oxidative stress, impairs filtration, making this statement accurate for the pathophysiology of renal injury.
B. Large amounts of IV fluids overloaded the kidneys and caused pre-renal damage
Large IV fluid volumes are used to prevent renal injury in rhabdomyolysis by diluting myoglobin and maintaining perfusion. Fluid overload may cause pulmonary edema but does not typically cause pre-renal damage, which results from hypoperfusion. This statement is inaccurate, as fluids are protective, not harmful.
C. Pain medications for the injuries were nephrotoxic and caused pre-renal damage
Pain medications like NSAIDs can be nephrotoxic, causing intra-renal damage by reducing renal blood flow or causing interstitial nephritis. However, pre-renal damage results from hypoperfusion, not direct toxicity. In crush injuries, myoglobin is the primary cause, making this statement less accurate than myoglobin-related tubular damage.
D. Significant blood loss impaired renal perfusion and caused post-renal damage
Significant blood loss causes pre-renal injury by reducing renal perfusion, not post-renal damage, which involves urinary obstruction. Crush injuries primarily cause intra-renal damage via myoglobin. This statement is inaccurate, as it misattributes the mechanism and type of renal injury in this context.
Full Explanation
Choice A reason: Crush injuries release myoglobin from damaged muscles, causing rhabdomyolysis. Myoglobin precipitates in renal tubules, obstructing them and leading to acute tubular necrosis, an intra-renal acute kidney injury. This toxic effect, combined with oxidative stress, impairs filtration, making this statement accurate for the pathophysiology of renal injury.
Choice B reason: Large IV fluid volumes are used to prevent renal injury in rhabdomyolysis by diluting myoglobin and maintaining perfusion. Fluid overload may cause pulmonary edema but does not typically cause pre-renal damage, which results from hypoperfusion. This statement is inaccurate, as fluids are protective, not harmful.
Choice C reason: Pain medications like NSAIDs can be nephrotoxic, causing intra-renal damage by reducing renal blood flow or causing interstitial nephritis. However, pre-renal damage results from hypoperfusion, not direct toxicity. In crush injuries, myoglobin is the primary cause, making this statement less accurate than myoglobin-related tubular damage.
Choice D reason: Significant blood loss causes pre-renal injury by reducing renal perfusion, not post-renal damage, which involves urinary obstruction. Crush injuries primarily cause intra-renal damage via myoglobin. This statement is inaccurate, as it misattributes the mechanism and type of renal injury in this context.
A nurse is preparing to discharge an obese client after abdominal surgery. Which instruction should the nurse prioritize to promote wound healing and prevent complications?
A. You should avoid taking pain medication to prevent constipation
Avoiding pain medication may increase discomfort, reducing mobility and increasing complications like atelectasis. Opioids can cause constipation, but this is managed with stool softeners, not avoidance. This statement is inaccurate, as pain control is essential for recovery and does not directly support wound healing.
B. You should rest and avoid moving around too much to prevent strain on your incision
Excessive rest increases risks like venous thromboembolism or pneumonia, especially in obese patients. Early ambulation promotes circulation and wound healing without straining incisions if done cautiously. This statement is inaccurate, as limiting movement excessively hinders recovery and increases postoperative complications.
C. You may return to your normal activity level once you feel comfortable at home
Returning to normal activity too soon risks incision dehiscence or infection, particularly in obese patients with higher wound complication rates. Gradual activity increase under medical guidance is needed. This statement is inaccurate, as premature activity resumption can compromise healing and safety post-surgery.
D. It is important to maintain adequate nutrition, including a high-protein diet to support wound healing
Adequate nutrition, especially high-protein intake, supports collagen synthesis and tissue repair, critical for wound healing. Obesity increases metabolic demand, and protein prevents malnutrition, enhancing immune response and incision strength. This statement is accurate, as nutrition is a priority to optimize postoperative recovery and prevent complications.
Full Explanation
Choice A reason: Avoiding pain medication may increase discomfort, reducing mobility and increasing complications like atelectasis. Opioids can cause constipation, but this is managed with stool softeners, not avoidance. This statement is inaccurate, as pain control is essential for recovery and does not directly support wound healing.
Choice B reason: Excessive rest increases risks like venous thromboembolism or pneumonia, especially in obese patients. Early ambulation promotes circulation and wound healing without straining incisions if done cautiously. This statement is inaccurate, as limiting movement excessively hinders recovery and increases postoperative complications.
Choice C reason: Returning to normal activity too soon risks incision dehiscence or infection, particularly in obese patients with higher wound complication rates. Gradual activity increase under medical guidance is needed. This statement is inaccurate, as premature activity resumption can compromise healing and safety post-surgery.
Choice D reason: Adequate nutrition, especially high-protein intake, supports collagen synthesis and tissue repair, critical for wound healing. Obesity increases metabolic demand, and protein prevents malnutrition, enhancing immune response and incision strength. This statement is accurate, as nutrition is a priority to optimize postoperative recovery and prevent complications.
Which statement best describes how physiologic doses of glucocorticoids are used?
A. Physiologic doses of glucocorticoids balance the feedback loop in clients with adrenal insufficiency
Physiologic doses of glucocorticoids, like hydrocortisone, mimic normal cortisol production (20-30 mg/day) in adrenal insufficiency, restoring hypothalamic-pituitary-adrenal axis feedback. This maintains metabolism, stress response, and immune function without excess. This statement is accurate, as these doses replace deficient cortisol to stabilize endocrine function.
B. Physiologic doses of glucocorticoids have the greatest impact on fluid and electrolyte balance
Physiologic doses have minimal impact on fluid and electrolyte balance compared to pharmacologic doses, which cause sodium retention via mineralocorticoid effects. In adrenal insufficiency, physiologic doses normalize cortisol without significant fluid shifts. This statement is inaccurate, as electrolyte effects are secondary and less pronounced.
C. Physiologic doses of glucocorticoids treat inflammatory disease in the body like rheumatoid arthritis
Physiologic doses replace cortisol in adrenal insufficiency, not treat inflammation. Pharmacologic (higher) doses suppress inflammation in diseases like rheumatoid arthritis by inhibiting cytokine production. This statement is inaccurate, as physiologic doses are insufficient for anti-inflammatory effects required in such conditions.
D. Physiologic doses of glucocorticoids lower blood glucose in place of insulin
Glucocorticoids increase, not lower, blood glucose by promoting gluconeogenesis and insulin resistance. Physiologic doses maintain normal glucose metabolism in adrenal insufficiency but do not replace insulin’s role. This statement is inaccurate, as glucocorticoids oppose insulin’s glucose-lowering effects, even at physiologic levels.
Full Explanation
Choice A reason: Physiologic doses of glucocorticoids, like hydrocortisone, mimic normal cortisol production (20-30 mg/day) in adrenal insufficiency, restoring hypothalamic-pituitary-adrenal axis feedback. This maintains metabolism, stress response, and immune function without excess. This statement is accurate, as these doses replace deficient cortisol to stabilize endocrine function.
Choice B reason: Physiologic doses have minimal impact on fluid and electrolyte balance compared to pharmacologic doses, which cause sodium retention via mineralocorticoid effects. In adrenal insufficiency, physiologic doses normalize cortisol without significant fluid shifts. This statement is inaccurate, as electrolyte effects are secondary and less pronounced.
Choice C reason: Physiologic doses replace cortisol in adrenal insufficiency, not treat inflammation. Pharmacologic (higher) doses suppress inflammation in diseases like rheumatoid arthritis by inhibiting cytokine production. This statement is inaccurate, as physiologic doses are insufficient for anti-inflammatory effects required in such conditions.
Choice D reason: Glucocorticoids increase, not lower, blood glucose by promoting gluconeogenesis and insulin resistance. Physiologic doses maintain normal glucose metabolism in adrenal insufficiency but do not replace insulin’s role. This statement is inaccurate, as glucocorticoids oppose insulin’s glucose-lowering effects, even at physiologic levels.