which of the following lab results is most indicative of dehydration
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1. Which of the following lab results is most indicative of dehydration?

Correct answer: B

Rationale: Elevated creatinine levels are indicative of dehydration because when the body is dehydrated, the kidneys concentrate urine to preserve fluid, leading to higher levels of creatinine. Low sodium levels (Choice A) can be seen in conditions like hyponatremia but are not specific to dehydration. Low potassium levels (Choice C) are more commonly associated with conditions like hypokalemia. High blood glucose levels (Choice D) are typically seen in diabetes and are not specific indicators of dehydration.

2. While assisting a client with a closed chest tube drainage system to move from bed to a chair, the chest tube gets caught on the chair leg and becomes dislodged from the insertion site. What is the immediate priority for the nurse?

Correct answer: D

Rationale: The immediate priority for the nurse when a chest tube becomes dislodged from the insertion site is to cover the site with a sterile occlusive dressing. This action helps prevent air from entering the pleural space, which could lead to a pneumothorax. The nurse should then perform a respiratory assessment to monitor the client's breathing, assist the client back into bed to a position of comfort, and notify the physician. Reinserting the chest tube is a task for the physician, not the nurse, as it requires specific training and expertise.

3. The nurse is caring for a patient who has had severe vomiting. The patient’s serum sodium level is 130 mEq/L. The nurse will expect the patient’s provider to order which treatment?

Correct answer: C

Rationale: In this scenario, the patient has hyponatremia with a serum sodium level of 130 mEq/L. For a serum sodium level between 125 and 135 mEq/L, the appropriate treatment is intravenous normal saline 0.9%. Normal saline helps to increase the sodium content in the vascular fluid. Diuretic therapy would exacerbate sodium and fluid depletion, which is not suitable for a patient already dehydrated from severe vomiting. Intravenous hypertonic 5% saline is typically reserved for severe hyponatremia with a serum sodium level below 120 mEq/L. Oral sodium supplements are not feasible in this case as the patient is vomiting and may not be able to tolerate oral intake easily.

4. The healthcare professional assesses a client with petechiae and ecchymosis scattered across the arms and legs. Which laboratory results should the healthcare professional review?

Correct answer: B

Rationale: The platelet count is the most appropriate laboratory result to review in a client presenting with petechiae and ecchymosis. Petechiae and ecchymosis are indicative of potential bleeding issues, which can be caused by low platelet count or impaired platelet function. Platelets are essential for clotting, and a low platelet count can lead to bleeding disorders. Reviewing the platelet count will provide valuable information about the client's clotting ability. Choice A, red blood cell count, is not typically associated with petechiae and ecchymosis. Hemoglobin levels (Choice C) are more related to anemia than bleeding disorders like thrombocytopenia. White blood cell count (Choice D) is not directly linked to the presence of petechiae and ecchymosis, which are more specific to platelet-related issues.

5. A nurse cares for clients with urinary incontinence. Which types of incontinence are correctly paired with their clinical manifestations? (Select all that apply.)

Correct answer: D

Rationale: The correct answer is D, as all the choices are correctly paired with their clinical manifestations. Stress incontinence is characterized by urine loss with physical exertion, coughing, sneezing, or exercising. Urge incontinence presents with a sudden and strong urge to void, often accompanied by a large amount of urine released during each occurrence. Overflow incontinence occurs when the bladder is distended, leading to a constant dribbling of urine. Functional incontinence, not mentioned in the options, is the leakage of urine due to factors unrelated to a lower urinary tract disorder. Reflex incontinence, also not mentioned, is a condition resulting from abnormal detrusor contractions.

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