the client has been vomiting and has had numerous episodes of diarrhea which laboratory test should the nurse monitor

HESI RN

Leadership HESI

1. The client has been vomiting and has had numerous episodes of diarrhea. Which laboratory test should the nurse monitor?

A. Serum calcium.
B. Serum phosphorus.
C. Serum potassium.
D. Serum sodium.

Correct answer: C

Rationale: During episodes of vomiting and diarrhea, there is a risk of significant potassium loss, leading to potential electrolyte imbalances. Monitoring serum potassium levels is crucial in this situation to assess and manage any abnormalities promptly. Serum calcium (Choice A) is not typically affected by vomiting and diarrhea. Serum phosphorus (Choice B) levels are not commonly altered by these symptoms. Serum sodium (Choice D) may be affected in severe cases of dehydration, but potassium monitoring is a higher priority due to its potential for rapid depletion in vomiting and diarrhea.

2. Jemma, who weighs 210 lb (95 kg) and has been diagnosed with hyperglycemia tells the nurse that her husband sleeps in another room because her snoring keeps him awake. The nurse notices that she has large hands and a hoarse voice. Which of the following would the nurse suspect as a possible cause of the client's hyperglycemia?

A. Acromegaly
B. Type 1 diabetes mellitus
C. Hypothyroidism
D. Deficient growth hormone

Correct answer: A

Rationale: The correct answer is Acromegaly. Jemma's symptoms of large hands, hoarse voice, and snoring are indicative of acromegaly, a disorder caused by excessive growth hormone production. Acromegaly can lead to insulin resistance, which can result in hyperglycemia. Choice B, Type 1 diabetes mellitus, is unlikely in this case as the symptoms and presentation are more suggestive of acromegaly. Choice C, Hypothyroidism, typically presents with different symptoms such as weight gain, fatigue, and cold intolerance, not consistent with Jemma's symptoms. Choice D, Deficient growth hormone, would not lead to the signs and symptoms observed in Jemma, as her condition is characterized by excessive growth hormone production.

3. A client with DM is taking regular and NPH insulin every morning. The nurse should provide which instruction to the client?

A. Take the regular insulin first, then the NPH insulin.
B. Take the NPH insulin first, then the regular insulin.
C. Mix the insulins in a separate syringe.
D. Take the regular insulin first and immediately follow it with the NPH insulin.

Correct answer: A

Rationale: The correct instruction for the client is to take the regular insulin first, then the NPH insulin. Regular insulin should be administered before NPH insulin to prevent contamination and maintain the potency of each insulin type. Choice B is incorrect because NPH insulin should not be taken before regular insulin. Mixing the insulins in a separate syringe, as suggested in choice C, is not recommended as it may alter the effectiveness of the insulins. Choice D is also incorrect as taking the regular insulin first and immediately following it with NPH insulin is not the recommended administration sequence.

4. An RN enters a patient's room to place an indwelling urinary catheter, as ordered by the healthcare professional. The client is alert and oriented and tells the RN he wants to leave the hospital now and not receive further treatment. Which of the following actions by the RN would be considered false imprisonment?

A. The RN tells the client he is not allowed to leave until the physician has released him.
B. The RN asks the client why he wishes to leave.
C. The RN asks the client to explain what he understands about his medical diagnosis.
D. The RN asks the client to sign an against medical advice discharge form.

Correct answer: A

Rationale: False imprisonment occurs when a person is prevented from leaving against their will. By telling the patient they are not allowed to leave, the RN is restricting the patient’s freedom unlawfully. Choice B is focused on understanding the patient's reasons for leaving and does not involve restricting the patient's freedom. Choice C aims to assess the patient's understanding of their medical condition, which is unrelated to false imprisonment. Choice D involves obtaining consent for leaving against medical advice, which is a legal and ethical process and not false imprisonment.

5. A client with type 2 diabetes mellitus is taking metformin. The nurse should monitor the client for which of the following potential side effects?

A. Lactic acidosis
B. Hypokalemia
C. Hyperglycemia
D. Weight gain

Correct answer: A

Rationale: The correct answer is A: Lactic acidosis. Metformin, a common medication for type 2 diabetes mellitus, can lead to lactic acidosis, particularly in individuals with renal impairment or other predisposing factors. Monitoring for signs and symptoms of lactic acidosis, such as muscle pain, weakness, trouble breathing, dizziness, and slow or irregular heartbeat, is crucial when a client is taking metformin. Choice B, hypokalemia, is not a common side effect of metformin. Choice C, hyperglycemia, is contrary to the intended effect of metformin, which is to lower blood glucose levels. Choice D, weight gain, is not typically associated with metformin use; in fact, metformin may even contribute to weight loss in some individuals.