ATI RN
Free Pediatric CCRN Practice Questions Questions
Question 1 of 5
The most common buffer system in the body is the:
Correct Answer: D
Rationale: The most common buffer system in the body is the bicarbonate-carbonic system. This system plays a crucial role in maintaining the pH balance in the blood. The bicarbonate ion (HCO3-) acts as a weak base, while carbonic acid (H2CO3) acts as a weak acid. The balance between these two components helps to regulate the pH of the blood.
Question 2 of 5
A pregnant client with hypertension and cardiac dysrhythmias is admitted to the hospital. Which of the following imbalances should the nurse check for?
Correct Answer: C
Rationale: Hypomagnesemia (low magnesium levels) should be checked for in a pregnant client with hypertension and cardiac dysrhythmias because magnesium plays a critical role in maintaining normal cardiac function and blood pressure regulation. It can worsen both hypertension and dysrhythmias if deficient. Hypomagnesemia can lead to cardiac arrhythmias, particularly in the setting of existing cardiovascular conditions. Monitoring and addressing magnesium levels is important in managing these conditions and ensuring maternal and fetal well-being during pregnancy. Checking for hypomagnesemia allows for timely intervention and correction to help prevent any complications.
Question 3 of 5
The physician orders furosemide (Lasix) 40 mg IV STAT for an acutely fluid-overloaded patient. Why was the IV route likely chosen?
Correct Answer: B
Rationale: The IV route was likely chosen for the administration of furosemide (Lasix) in this acutely fluid-overloaded patient because IV is the route of choice when rapid administration is needed. When given intravenously, the medication is able to produce a quicker and more immediate diuretic effect compared to oral administration, allowing for more rapid relief of fluid overload symptoms. This can be crucial in emergency situations where the patient's condition requires fast intervention.
Question 4 of 5
Which of the ff signs may be revealed by a visual examination in a client with tonsillar infection if group A streptococci is the cause?
Correct Answer: A
Rationale: The presence of white patches on the tonsils is a visual sign that may be revealed by a visual examination in a client with a tonsillar infection caused by group A streptococci. These white patches are known as exudates and can be a characteristic feature of streptococcal tonsillitis. These exudates may range in appearance from small white spots to larger patches that cover the tonsils. Additionally, other signs commonly associated with streptococcal tonsillitis may include swollen and red tonsils, fever, sore throat, and sometimes swollen lymph nodes in the neck. It is important to note that definitive diagnosis often requires laboratory testing such as a rapid strep test or throat culture to confirm the presence of group A streptococci.
Question 5 of 5
How does nosocomial pneumonia occur?
Correct Answer: A
Rationale: Nosocomial pneumonia occurs in a healthcare setting. It is a type of pneumonia that is contracted during a hospital stay or other healthcare facilities. The risk of developing nosocomial pneumonia is higher in patients who are already hospitalized due to various medical conditions, surgeries, or use of medical devices like ventilators. The infection can be caused by different types of bacteria, viruses, or fungi present in the healthcare environment. Preventive measures, such as proper hand hygiene, infection control practices, and minimizing the use of invasive devices, are crucial in reducing the incidence of nosocomial pneumonia.