The nurse is reviewing the laboratory results of a client who reports taking five times the recommended daily allowance of vitamins and minerals in a multivitamin form. Which finding indicates a possible vitamin D overdose?

Reference Range:

Bilirubin [0.3 to 1 mg/dL (5.1 to 17 μmol/L)]

Calcium 19 to 10.5 mg/dL (2.3 to 2.6 mmol/L)]

Sodium [136 to 145 mEq/L (136 to 145 mmol/L)]

Blood Glucose [74 to 106 mg/dL (4.1 to 5.9 mmol/L)]

Sodium level 140 mEq/L (140 mmol/L).

Total calcium level 12 mEq/L (3 mmol/L).

Total bilirubin 4 mg/dL (68.4 μmol/L).

Serum glucose 170 mg/dL (9.4 mmol/L).

Answer and Explanation

The Correct Answer is B

A) Sodium level 140 mEq/L (140 mmol/L):
The sodium level within the reference range does not indicate a vitamin D overdose. Sodium levels are typically not affected by vitamin D overdose.

B) Total calcium level 12 mg/dL (3 mmol/L):
This finding suggests a possible vitamin D overdose. Vitamin D plays a crucial role in calcium absorption from the intestines. Excessive vitamin D intake can lead to increased calcium absorption, resulting in hypercalcemia. Elevated calcium levels can lead to various symptoms such as nausea, vomiting, weakness, and confusion. Monitoring calcium levels is essential in individuals with suspected vitamin D overdose.

C) Total bilirubin 4 mg/dL (68.4 μmol/L):
Elevated bilirubin levels typically indicate liver dysfunction or hemolysis. It is not directly related to vitamin D overdose.

D) Serum glucose 170 mg/dL (9.4 mmol/L):
Elevated glucose levels suggest hyperglycemia, which can occur due to various factors such as diabetes mellitus or stress response. It is not directly related to vitamin D overdose.

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Free Nursing Study Resources

Correct Answer is C

Explanation

A) Irrigation and topical antibiotic application to wound area: While wound care is important in managing infections, obtaining cultures before initiating antibiotic therapy takes precedence to ensure appropriate treatment. Topical antibiotics may not adequately address systemic infections caused by gram-negative bacteria.
B) Monitor for signs of sodium and fluid retention: This intervention is important when administering certain antibiotics, such as those in the aminoglycoside class, but it is not the most immediate priority. Monitoring for signs of sodium and fluid retention is typically indicated after antibiotic therapy has commenced and involves assessing the client's clinical status and laboratory values for signs of electrolyte imbalance or fluid overload.
C) Wound and blood specimens for culture and sensitivity: This action is essential before initiating antibiotic therapy because it allows for the identification of the specific organism causing the infection and its susceptibility to antibiotics. This information guides the selection of the most appropriate antibiotic for targeted therapy, improving treatment efficacy and reducing the risk of antibiotic resistance.
D) Complete blood count and serum electrolytes: While monitoring laboratory values is important in the overall management of the client, obtaining cultures for culture and sensitivity testing is the priority before initiating antibiotic therapy. This step helps ensure that the chosen antibiotic is effective against the specific pathogen causing the infection.

A. Platelets. B. Osmolality. C. Glucose D. Calcium

Correct Answer is B

Explanation

A) Platelets:
Platelet levels are not directly affected by antidiuretic hormone (ADH) administration or diabetes insipidus. Platelet monitoring is important in assessing clotting function but is not specifically related to the management of diabetes insipidus or ADH therapy.

B) Osmolality:
This is the correct answer. Osmolality refers to the concentration of solutes in the blood and is a critical parameter to monitor in clients receiving ADH therapy for diabetes insipidus. ADH regulates water reabsorption in the kidneys, thereby affecting blood osmolality. Monitoring serum osmolality helps assess the effectiveness of ADH therapy in maintaining fluid balance and preventing excessive urine output.

C) Glucose:
While glucose monitoring is important in clients with diabetes mellitus, it is not directly related to diabetes insipidus or ADH therapy. Diabetes insipidus is characterized by excessive thirst and urination due to inadequate ADH production or response, which does not involve glucose metabolism.

D) Calcium:
Calcium levels are not typically affected by ADH therapy or diabetes insipidus. Monitoring calcium levels is important in conditions such as hyperparathyroidism or hypoparathyroidism but is not directly relevant to the management of diabetes insipidus.

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