The nurse is caring for a patient in the Intensive Care Unit (ICU) with a ventriculostomy and intracranial pressure (ICP) reading of 30mmHg. The nurse notes a widened pulse pressure, irregular respirations. and bradycardia. The neurosurgeon instructs the nurse to drain cerebrospinal fluid. The nurse would also anticipate which medication administration order from the provider?
3% Normal Saline
Nitroprusside
Norepinephrine
Furosemide
The Correct Answer is A
A) 3% Normal Saline:
Elevated ICP can lead to a life-threatening condition known as cerebral herniation, and it often triggers the Cushing’s triad—widened pulse pressure, bradycardia, and irregular respirations, all of which the nurse has noted. Hypertonic saline (such as 3% Normal Saline) is commonly used to manage increased ICP because it creates an osmotic gradient that draws fluid out of the brain tissue, reducing cerebral edema and lowering ICP. The goal is to reduce swelling and prevent further brain damage.
B) Nitroprusside:
Nitroprusside is a potent vasodilator that is used to treat hypertension and reduce afterload in conditions like heart failure or aortic dissection. However, in this case, nitroprusside is contraindicated because it could cause a drop in systemic blood pressure, which would worsen cerebral perfusion in a patient with elevated ICP.
C) Norepinephrine:
Norepinephrine is a vasopressor used to treat hypotension by increasing systemic vascular resistance and blood pressure. Although norepinephrine may be used to support blood pressure in critically ill patients, in this context of elevated ICP, the priority is to reduce ICP, not to increase blood pressure further. Increasing the systemic vascular resistance with norepinephrine could exacerbate ICP by increasing the volume of blood in the cranium
D) Furosemide:
Furosemide is a loop diuretic that can reduce fluid volume and help treat conditions like edema or heart failure. While furosemide can reduce overall fluid volume, it is not typically used to manage elevated ICP in this context. Diuretics like furosemide may have a role in managing cerebral edema, but they are not as effective as hypertonic saline in rapidly reducing ICP.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A) Use the 3-second markers to count the number of QRS complexes in 6 seconds and multiply by 10:
The 3-second markers on the ECG strip represent a fixed time interval. By counting the number of QRS complexes in the 6-second interval (i.e., two 3-second markers), you can estimate the heart rate by multiplying the number of QRS complexes by 10. This method is quick and effective for calculating heart rate in an emergency setting, such as in arrhythmias or when time is of the essence.
B) Print a 1-minute ECG strip and count the number of QRS complexes:
While this is another way to assess the heart rate, it is not a quick method, especially in emergency situations. It is more time-consuming because it involves printing out a full strip (or ensuring you have enough data to calculate a full minute). This approach may be useful for detailed analysis but is not optimal for quickly estimating the ventricular rhythm.
C) Calculate the number of small squares between one QRS complex and the next one and divide by 1500:
This method is more complex and is used for calculating the heart rate with a more precise ECG reading. It requires counting the number of small squares between two QRS complexes and dividing by 1500 (the number of small squares in one minute). This method is accurate but not the fastest option for quickly estimating the heart rate during an emergency.
D) Count the number of large squares in the R-R interval and divide by 300:
counting the number of large squares between two R-R intervals and dividing by 300, you get the heart rate. However, this method is less commonly used in emergency situations because it requires more time and may not be as immediate as using the 3-second markers. It is more applicable when doing a detailed analysis of the rhythm.
Correct Answer is A
Explanation
A) CD4 count of less than 200 cells/uL, and new diagnosis of pneumocystis pneumonia:
A CD4 count of less than 200 cells/uL and the diagnosis of a severe opportunistic infection, such as pneumocystis pneumonia (PCP), are major criteria for the diagnosis of acquired immunodeficiency syndrome (AIDS). AIDS is the final stage of HIV infection, where the immune system is severely compromised, and the individual is highly susceptible to opportunistic infections like PCP, tuberculosis, and others. The CD4 count, which measures the number of immune system cells (specifically T-helper cells), is used to monitor disease progression, with values below 200 cells/uL indicating a diagnosis of AIDS.
B) CD4 count of 1200 cells/uL and a new diagnosis of hepatitis A:
While hepatitis A is an important condition that should be managed, it is not an opportunistic infection associated with AIDS. A CD4 count of 1200 cells/uL is within the normal range (500-1800 cells/uL), indicating that the immune system is not severely compromised.
C) Low grade fever with the diagnosis of influenza A:
A low-grade fever and a diagnosis of influenza A do not indicate AIDS. Influenza is a viral infection that can affect both individuals with and without HIV. It is common to experience flu-like symptoms in the early stages of HIV infection, but the presence of a fever and influenza does not confirm AIDS. A low-grade fever is also not specific to AIDS or opportunistic infections.
D) New atopic dermatitis and a white blood count of 11 million/mm³:
Atopic dermatitis is a chronic inflammatory skin condition that is not specifically associated with HIV or AIDS. The white blood cell (WBC) count of 11 million/mm³ is elevated, but this alone does not confirm a diagnosis of AIDS. Elevated WBC counts can occur with various conditions, including infections and allergic reactions, but they are not a diagnostic feature of AIDS.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.