Nursing Elites

1. A client has the following arterial blood gas (ABG) results: pH 7.51, PCO2 31 mm Hg, PO2 94 mm Hg, HCO3 24 mEq/L. Which of the following acid-base disturbances does the nurse recognize in these results?

• A. Metabolic acidosis
• B. Metabolic alkalosis
• C. Respiratory acidosis
• D. Respiratory alkalosis

Correct answer: D

Rationale: The ABG results show a pH above the normal range (7.35-7.45) and a decreased PCO2, indicating respiratory alkalosis. In respiratory alkalosis, the pH is increased and the PCO2 is decreased. Metabolic acidosis (choice A) would present with a low pH and low HCO3 levels. Metabolic alkalosis (choice B) would show an increased pH and HCO3 levels. Respiratory acidosis (choice C) would have a low pH and an increased PCO2.

2. A middle-aged female client with diabetes mellitus is being treated for the third episode of acute pyelonephritis in the past year. The client asks, 'What can I do to help prevent these infections?' How should the nurse respond?

• A. Test your urine daily for the presence of ketone bodies and proteins.
• B. Use tampons rather than sanitary napkins during your menstrual period.
• C. Drink more water and empty your bladder more frequently during the day.
• D. Keep your hemoglobin A1c under 9% by controlling your blood sugar levels.

Correct answer: C

Rationale: The correct answer is C. Clients with long-standing diabetes mellitus are at risk for pyelonephritis due to various reasons. Elevated blood glucose levels in diabetes can lead to glucose spilling into the urine, altering the pH and creating a conducive environment for bacterial growth. Neuropathy associated with diabetes can reduce bladder tone and diminish the sensation of bladder fullness, resulting in less frequent voiding and increased risk of stasis and bacterial overgrowth. Increasing fluid intake, particularly water, and voiding regularly can help prevent stasis and microbial overgrowth. Testing urine for ketones and proteins or using tampons instead of sanitary napkins are not effective strategies for preventing pyelonephritis. Keeping the hemoglobin A1c levels below 9% is crucial for managing diabetes, but it alone does not directly prevent pyelonephritis.

3. Which electrolyte imbalance is most likely to be seen in a patient with chronic kidney disease?

• A. Hypernatremia.
• B. Hyperkalemia.
• C. Hypocalcemia.
• D. Hypokalemia.

Correct answer: B

Rationale: In chronic kidney disease, hyperkalemia is the most common electrolyte imbalance due to the kidneys' reduced ability to excrete potassium. This impaired kidney function leads to potassium retention in the body, resulting in elevated serum potassium levels. Hypernatremia (increased sodium levels) is less likely in chronic kidney disease as the kidneys typically still function to regulate sodium levels. Hypocalcemia (low calcium levels) is not a prominent electrolyte imbalance in chronic kidney disease unless there are additional factors involved. Hypokalemia (low potassium levels) is less common in chronic kidney disease, as the primary issue is usually potassium retention rather than deficiency.

4. Which of the following is the most appropriate diet for a client during the acute phase of myocardial infarction?

• A. Liquids as desired.
• B. Small, easily digested meals.
• C. Three regular meals per day.
• D. Nothing by mouth.

Correct answer: B

Rationale: During the acute phase of myocardial infarction, it is recommended to provide small, easily digested meals for the client. This type of diet is better tolerated as it reduces the workload on the heart, allowing for easier digestion and absorption of nutrients. Choice A, 'Liquids as desired,' may not provide adequate nutrition and may not be well-balanced. Choice C, 'Three regular meals per day,' may be too heavy for the client's weakened condition. Choice D, 'Nothing by mouth,' is not appropriate as the client still requires essential nutrients for recovery.

5. The client is being taught about the best time to plan sexual intercourse in order to conceive. Which information should be provided?

• A. Two weeks before menstruation.
• B. Vaginal mucous discharge is thick.
• C. Low basal temperature.
• D. First thing in the morning.

Correct answer: A

Rationale: The correct answer is A: 'Two weeks before menstruation.' Ovulation typically occurs 14 days before menstruation begins during a typical 28-day cycle. To increase the chances of conception, sexual intercourse should occur within 24 hours of ovulation. High estrogen levels during ovulation lead to changes in vaginal mucous discharge, making it more 'slippery' and stretchy. Basal temperature rises during ovulation. The timing of intercourse during the day is less significant than ensuring it happens around ovulation. The other options are incorrect because planning intercourse two weeks before menstruation is likely to miss the fertile window, thick vaginal mucous discharge indicates ovulation is approaching, and low basal temperature is not indicative of the fertile period.

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