A client is receiving an intravenous (IV) solution over a short amount of time to replace volume losses. The nurse understands that this IV solution is most likely to be:
isotonic.
hypotonic.
hypertonic.
Hyperosmotic
The Correct Answer is A
A. Isotonic solutions have a similar osmolarity to that of blood plasma, meaning they exert the same osmotic pressure as blood. This equilibrium prevents the movement of water across cell membranes, thereby maintaining cell volume and preventing cellular dehydration or swelling. Examples of isotonic solutions commonly used for intravenous fluid replacement include 0.9% saline (normal saline) and lactated Ringer's solution.
B. Hypotonic solutions have a lower osmolarity than blood plasma, meaning they exert less osmotic pressure than blood. When administered, hypotonic solutions cause water to move into cells, leading to cellular swelling. While hypotonic solutions can help hydrate cells and replenish intracellular fluid, they are not typically used for rapid volume replacement because they can exacerbate extracellular fluid deficits and cause complications such as cerebral edema or cardiovascular collapse.
C. Hypertonic solutions have a higher osmolarity than blood plasma, meaning they exert greater osmotic pressure than blood. When administered, hypertonic solutions cause water to move out of cells, leading to cellular shrinkage. Hypertonic solutions are often used to expand intravascular volume in cases of severe hypovolemia or shock, as they rapidly increase blood osmolarity and draw fluid from the interstitial space into the bloodstream. Examples of hypertonic solutions include 3% saline and 5% dextrose in 0.9% saline.
D. Hyperosmotic solutions have an elevated osmolarity compared to blood plasma, indicating a higher concentration of solutes. These solutions exert osmotic pressure that draws water out of cells, leading to cellular dehydration. While hyperosmotic solutions are not commonly used for rapid volume replacement due to their pot
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","B","C","D","E"]
Explanation
A. A healthy stoma should appear moist and shiny, indicating adequate blood supply and hydration of the tissue. Dryness or dullness of the stoma may indicate poor blood flow or dehydration and should be further evaluated.
B. A healthy stoma typically appears deep pink to red in color, indicating good tissue perfusion. Pallor or cyanosis of the stoma may indicate inadequate blood supply and should be assessed promptly.
C. The skin around the stoma, known as the peristomal skin, should be intact, without signs of irritation, redness, or tenderness. Irritation or breakdown of the peristomal skin can occur due to leakage of stool or irritation from ostomy appliances and should be addressed promptly to prevent skin complications.
D. A flat abdomen suggests normal abdominal contour without distention or bulging. Distention or bulging of the abdomen may indicate underlying issues such as bowel obstruction, gas accumulation, or fluid retention and should be assessed further.
E. Bowel sounds are indicative of gastrointestinal motility and function. Normal bowel sounds are present and audible in healthy individuals and are characterized by 8 to 10 clicks or gurgles per minute. Absence or abnormal bowel sounds may indicate bowel obstruction, ileus, or other gastrointestinal disorders and should be assessed further.
Correct Answer is A
Explanation
A. It's essential for nurses caring for dying patients to be comfortable with their own feelings about death and dying. Being comfortable with mortality allows nurses to provide compassionate care, support families, and engage in end-of-life discussions with patients. Nurses who are comfortable with their own feelings about death are better equipped to provide holistic care and support to dying patients and their families.
B. Hospice services focus on providing comfort and support to terminally ill patients and their families during the end-of-life journey. While hospice services are often beneficial and recommended for patients approaching the end of life, preferences vary among individuals and families. Some patients may choose to receive hospice care, while others may prefer to remain at home with palliative care support or receive care in a hospital or long-term care facility.
C. While some patients may experience pain as death nears, it is not necessarily true that "most" deaths are accompanied by significant pain. With advances in palliative care and pain management, many patients can experience a comfortable and peaceful death with effective symptom management.
D. Most people are not frightened to die if they have adequate information about what is happening: While adequate information and preparation can alleviate some fears about death, attitudes and responses to death vary widely among individuals. Some people may find comfort and acceptance in understanding the dying process and what to expect, while others may still experience fear, anxiety, or uncertainty regardless of the information provided.
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