A nurse is collecting data from a client who has diabetes mellitus.
Which of the following findings indicates that the client is experiencing DKA?
Confusion
Polydipsia
Rapid pulse
Clammy skin
Correct Answer : A,B,C
Choice A rationale:
Confusion can be a symptom of Diabetic Ketoacidosis (DKA). DKA is a serious complication of diabetes that occurs when your body produces high levels of blood acids called ketones. The condition develops when your body can’t produce enough insulin. Insulin normally plays a key role in helping sugar (glucose) — a major source of energy for your muscles and other tissues — enter your cells. Without enough insulin, your body begins to break down fat as fuel. This process produces a buildup of acids in the bloodstream called ketones, eventually leading to diabetic ketoacidosis if untreated.
Choice B rationale:
Polydipsia, or excessive thirst, is another common symptom of DKA. High blood sugar levels can cause increased urination, leading to dehydration and an increased feeling of thirst.
Choice C rationale:
A rapid pulse is also a symptom of DKA. This is because the body is trying to compensate for the low amount of fluid in your blood vessels due to dehydration.
Choice D rationale:
Clammy skin is not typically a symptom of DKA. It’s more commonly associated with hypoglycemia (low blood sugar), not hyperglycemia (high blood sugar) which is what occurs in DKA1.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale:
Amphotericin B is a potent antifungal medication used to treat severe fungal infections. However, it is typically reserved for life-threatening systemic fungal infections due to its potential for serious side effects, including kidney damage and infusion reactions. It is not commonly used as a first-line treatment for vaginal yeast infections.
Choice B rationale:
While antifungal creams can be effective for treating vaginal yeast infections, they typically require a treatment course of several days. This option may not be the best choice for a patient seeking a quicker, one-time treatment.
Choice C rationale:
A single dose of a fluconazole oral tablet is often an effective treatment for vaginal yeast infections. Fluconazole works by inhibiting the growth of the yeast causing the infection. It is convenient for patients because it only requires one dose, unlike creams or suppositories that need to be applied for several days.
Choice D rationale:
There are indeed alternatives to antifungal suppositories for treating vaginal yeast infections. As mentioned above, a single dose of fluconazole is one such alternative. Therefore, stating that there is no better alternative to the suppositories is not accurate.
Correct Answer is A
Explanation
Choice A rationale:
Phenytoin is an anticonvulsant drug used in the prophylaxis and control of various types of seizures. It has a narrow therapeutic index, which means that the safe and toxic plasma levels of the drug are very close to each other. This characteristic makes the dosing of phenytoin challenging, as even small deviations from the recommended therapeutic range can lead to suboptimal treatment or adverse effects. Therapeutic effect without clinical signs of toxicity occurs more often with serum total concentrations between 10 and 20 mcg/mL34. Therefore, clinicians are advised to initiate therapeutic drug monitoring in patients who require phenytoin.
Choice B rationale:
The statement that phenytoin has a low chance of being effective is incorrect. Phenytoin is a widely used and effective anticonvulsant. It works by slowing down impulses in the brain that cause seizures. It is used to control seizures but does not treat all types of seizures. The effectiveness of phenytoin is not determined by its narrow therapeutic index but by its pharmacological action in the brain.
Choice C rationale:
The assertion that there is no difference between safe and toxic plasma levels of phenytoin is incorrect. There is indeed a difference between the safe (therapeutic) and toxic levels of phenytoin. The therapeutic range for phenytoin is typically between 10 and 20 mcg/mL34. Levels above this range can lead to toxicity, while levels below this range may not provide the desired therapeutic effect.
Choice D rationale:
The statement that a very small dosage of phenytoin can result in the desired therapeutic effect is not entirely accurate. While it’s true that phenytoin is effective in controlling seizures, the dosage required to achieve this effect is not necessarily “very small”. The usual adult dose for seizures is 100 mg orally 3 times a day. The dosage may need to be adjusted based on individual patient factors and response to therapy. Therefore, it’s not accurate to generalize that a “very small” dosage will result in the desired therapeutic effect for all patients.
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