During an assessment of a patient with dehydration, which clinical sign is most indicative of fluid volume deficit?
Orthostatic hypotension.
Bradycardia.
Increased skin turgor.
Edema in the lower extremities.
The Correct Answer is A
A. Orthostatic hypotension: When fluid volume is low (hypovolemia), the body cannot maintain blood pressure when changing positions (e.g., sitting to standing), leading to a significant drop in pressure and an increase in heart rate.
B. Bradycardia: Dehydration typically causes tachycardia (increased heart rate) as the heart tries to compensate for low blood volume.
C. Increased skin turgor: Dehydration causes decreased skin turgor (skin remains tented when pinched).
D. Edema in the lower extremities: Edema indicates fluid volume excess, not a deficit.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Administering sodium bicarbonate: This is used for metabolic acidosis. In respiratory acidosis due to gas exchange issues, the priority is to fix the ventilation problem.
B. Restricting fluid intake: This does not directly address gas exchange or pH balance in an acute respiratory setting.
C. Increasing oxygen supplementation: The primary goal for impaired gas exchange is to improve oxygenation and facilitate the removal of CO2.
D. Administering bronchodilators: While helpful if the cause is asthma or COPD, it is not as broad or immediate a priority for general "impaired gas exchange" as ensuring oxygen delivery.
Correct Answer is A
Explanation
A. Intrinsic factor is necessary for the absorption of vitamin B12 in the ileum: Intrinsic factor acts as a carrier protein; without it, the receptors in the terminal ileum cannot recognize or transport B12 into the bloodstream.
B. Intrinsic factor aids in the conversion of vitamin B12 to its active form.: Conversion to active forms occurs within the cells/body; intrinsic factor's role is strictly limited to transport across the intestinal wall.
C. Intrinsic factor is required for excretion of vitamin B12 in the kidneys.: It is required for absorption (entry), not excretion (exit).
D. Intrinsic factor enhances synthesis of vitamin B12 in the liver.: Humans cannot synthesize B12 in the liver; it must be ingested.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.