A nurse is teaching a class about administering IV fluids to treat dehydration. The nurse should include in the teaching that which of the following laboratory values indicates effective treatment of dehydration?
Serum osmolarity 310 mOsm/L
Serum hematocrit 55%
Urine specific gravity 1.020
BUN 28 mg/dL
The Correct Answer is C
Choice A Reason:
Serum osmolarity 310 mOsm/L is incorrect. Serum osmolarity measures the concentration of particles in the blood. While an elevated serum osmolarity might indicate dehydration, it's not a direct indicator of the effectiveness of treatment. It signifies the concentration of solutes in the blood rather than reflecting hydration improvement after treatment.
Choice B Reason:
Serum hematocrit 55%m is incorrect. Elevated hematocrit levels can occur in dehydration because of hemoconcentration (an increase in the concentration of red blood cells due to reduced fluid volume). However, similar to serum osmolarity, while it can indicate dehydration, it doesn't specifically reflect the effectiveness of treatment.
To determine effective treatment of dehydration, the nurse should consider the laboratory values that reflect hydration status:
Choice C Reason:
Urine specific gravity 1.020 is correct. Urine specific gravity measures the concentration of solutes in the urine, indicating the kidneys' ability to concentrate urine. A higher specific gravity (typically above 1.020) suggests more concentrated urine, which can indicate dehydration. As hydration improves, the urine becomes less concentrated, so a decrease in urine specific gravity toward the normal range (around 1.010-1.020) indicates effective rehydration and improved kidney function in retaining fluids.
Choice D Reason:
BUN 28 mg/dL is incorrect. Blood urea nitrogen (BUN) levels can also rise in dehydration due to reduced kidney perfusion. However, like serum osmolarity and hematocrit, while it can indicate dehydration, it doesn't directly show the effectiveness of treatment or the improvement in hydration status after treatment.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A Reason:
Visual disturbances is the correct findings. In individuals taking digoxin, visual disturbances such as blurred or yellow-tinted vision can indicate early signs of medication toxicity. This symptom often requires prompt medical attention, as it can precede more severe complications.
Choice B Reason:
Sudden weight gain is not correct. While weight gain can be a symptom of worsening heart failure, it's not typically associated specifically with digoxin toxicity. It's more commonly related to fluid retention in heart failure.
Choice C Reason:
Potassium 4.4 mEq/L is not correct. This potassium level is within the normal range. Digoxin toxicity can be exacerbated by low potassium levels, but a normal potassium level doesn't directly indicate digoxin toxicity.
Choice D Reason:
Insomnia is not a typical early sign of digoxin toxicity. It's more commonly associated with issues like difficulty sleeping rather than being a direct symptom of digoxin toxicity.
Correct Answer is B
Explanation
Choice A Reason:
Giving the prescribed dose of clindamycin is not appropriate due to the reported penicillin allergy, which increases the risk of an allergic reaction.
Choice B Reason:
Obtain a prescription for an alternative antibiotic is correct. Given the client's reported allergy to penicillin, which is in the same antibiotic class as clindamycin (both are antibiotics that belong to the beta-lactam group), there is a higher risk of cross-reactivity and potential allergic reaction. Therefore, it's important to avoid administering clindamycin in such cases and seek an alternative antibiotic that does not have a similar chemical structure to penicillin to prevent an allergic reaction.
Choice C Reason:
Premeditating the client with epinephrine before administering the antibiotic is not a standard practice in this context. Epinephrine is used to treat severe allergic reactions but is not used as a preventive measure before administering antibiotics.
Choice D Reason:
Administering the clindamycin using a desensitization schedule might be an option in certain situations under the guidance of an allergist or immunologist, but it's not typically performed by nurses and requires a specific protocol and expertise in managing drug allergies. Obtaining an alternative antibiotic is a more appropriate and immediate action to avoid the risk of an allergic reaction in this scenario.
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