Medical Surgical Exam 4 (NSG 123)

The correct answer is B: Presence of glucose in the client's urine.

Explanation for the correct answer:

B. Presence of glucose in the client's urine:

When blood glucose levels exceed the renal threshold (typically around 180 mg/dL), the kidneys are unable to reabsorb all the glucose, resulting in glucose spilling over into the urine. In this case, the client has a blood sugar level of 289 mg/dL, which is above the threshold for glucose reabsorption, so glucose would likely be present in the urine.

Why the other options are incorrect:

A. Decreased sodium in the client's urine:

While diabetes can affect electrolyte balance, an increased urine output due to high blood sugar (polyuria) typically results in the loss of water and electrolytes, including sodium. However, polyuria due to hyperglycemia is more likely to result in a decrease in sodium concentration in the blood (not the urine), as water is lost in excess.

C. Decreased potassium in the client's urine:

Potassium levels in the urine are often affected by insulin and hydration status. In hyperglycemia, especially when it is not well controlled, potassium may shift out of cells into the bloodstream. In some cases, insulin therapy or the correction of acidosis may lead to the loss of potassium in the urine. However, this is not the primary finding in this case.

D. Presence of ketones in the client's urine:

Ketones are typically present in the urine in cases of uncontrolled diabetes, especially when insulin is not sufficient and the body begins to break down fat for energy (as seen in diabetic ketoacidosis or DKA). However, the primary indication for ketones in the urine is usually a more significant level of hyperglycemia and acidosis, not just an elevated blood sugar without signs of ketoacidosis. Although the client may eventually develop ketones if the blood sugar remains high without intervention, ketones are not expected in the urine in the early stages of hyperglycemia.

Summary:

The most likely finding in this case is the presence of glucose in the urine. When blood sugar levels exceed the renal threshold, glucose spills into the urine, which can result in increased urine output (polyuria). This is a common sign of hyperglycemia in clients with diabetes.

The correct answer is:

B. rolling head side to side

C. loss of appetite

E. crying

Explanation for the correct answer:

B. rolling head side to side

Infants with acute otitis media often experience significant pain and discomfort. One common behavior is rolling the head side to side, which may be a way for the infant to try to relieve the pressure or discomfort in the ear. This is a clinical manifestation of acute otitis media.

C. loss of appetite

A loss of appetite is a common symptom in infants with acute otitis media. The pain from the infection can make sucking or swallowing uncomfortable, leading to reduced feeding. In addition, the general discomfort from the infection may cause the infant to refuse food.

E. crying

Crying is a typical symptom in infants with acute otitis media. The pain caused by the infection and the pressure in the ear can lead to persistent crying. The crying often worsens when the infant is in a position that exacerbates ear pressure, such as lying down or being handled.

Why the other options are wrong:

A. decreased pain in the supine position

This is incorrect. Pain in acute otitis media often worsens when the infant is in the supine position (lying on their back). Lying down can increase pressure in the middle ear, exacerbating the pain and discomfort associated with the infection.

D. increased sensitivity to sound

Increased sensitivity to sound is not a typical manifestation of acute otitis media in infants. While ear infections can affect hearing, they typically cause muffled hearing or temporary hearing loss due to fluid in the middle ear. Increased sensitivity to sound is more commonly associated with other conditions such as hyperacusis or other auditory processing disorders, not otitis media.

Summary:

Clinical manifestations of acute otitis media in infants include behaviors such as rolling the head side to side, loss of appetite, and crying due to pain and discomfort from the infection. Pain often worsens when the infant is lying down, making the supine position uncomfortable, and increased sensitivity to sound is not a typical symptom of ear infections.

The correct answer is A: I will need to have a mammogram every 2 yrs beginning at 45

Explanation for the correct answer:

A. I will need to have a mammogram every 2 yrs beginning at 45

The current guidelines recommend that women begin mammography screening for breast cancer at age 45, with the option to begin at age 40 if they wish. Mammograms should be done every year until age 54, and after that, they can be done every 2 years. This recommendation is based on research showing that regular mammograms help detect breast cancer early, improving outcomes for women.

Why the other options are wrong:

B. I should have colonoscopy every 15 yrs beginning at 60

This is incorrect. The American Cancer Society recommends that individuals begin colorectal cancer screening at age 45. The typical guidelines suggest that colonoscopies should be done every 10 years, not every 15 years, for individuals at average risk of colorectal cancer. Screening can be done more frequently depending on risk factors or findings during previous screenings.

C. I will need to have an annual breast exam every year after 40

This is incorrect. While breast self-exams and clinical breast exams can be part of early detection, the American Cancer Society no longer recommends routine clinical breast exams for women at average risk. The focus for women over 40 is on regular mammograms, rather than annual clinical breast exams.

D. I should have a fecal occult test done every 3 years

This is incorrect. The recommended frequency for fecal occult blood testing (FOBT) for colorectal cancer screening is annually, not every 3 years. It is one of the options for screening, but it should be done every year, or individuals may choose other screening options, like colonoscopies every 10 years.

Summary:

The statement that indicates an understanding of cancer screening prevention is A, where the client correctly identifies that mammograms should begin at age 45 and be done every 2 years. Other options either misunderstand the frequency or age of screening for other types of cancer.

The correct answer is A: magnesium hydroxide (Milk of Magnesia).

Explanation for the correct answer:

Magnesium hydroxide, commonly found in antacids like Milk of Magnesia, can interfere with the absorption of levothyroxine (Synthroid). Magnesium can bind to levothyroxine in the gastrointestinal tract, reducing the effectiveness of the thyroid medication. This interaction can lead to suboptimal thyroid hormone levels and poor management of hypothyroidism. Therefore, the nurse should notify the healthcare provider if the client is taking magnesium hydroxide.

Why the other options are incorrect:

B: amitriptyline (Elavil):

Amitriptyline is a tricyclic antidepressant, and there is no significant interaction between amitriptyline and levothyroxine. Although amitriptyline can have effects on mood and sleep, it does not directly impact the absorption or effectiveness of levothyroxine.

C: acetaminophen (Tylenol):

Acetaminophen does not interact with levothyroxine. It is a common analgesic and antipyretic, and there is no concern about how it affects thyroid hormone therapy.

D: gabapentin (Neurontin):

Gabapentin is a medication used to treat neuropathic pain and seizures. There are no significant interactions between gabapentin and levothyroxine that would require notifying the healthcare provider.

Summary:

Magnesium hydroxide (Milk of Magnesia) is the medication that should raise concern in a client taking levothyroxine due to its potential to interfere with the absorption of the thyroid medication. The other medications listed—amitriptyline, acetaminophen, and gabapentin—do not significantly affect the action of levothyroxine.

The correct answer is  D: metformin

Explanation for the correct answer:

D. metformin

Metformin is an oral antihyperglycemic used to manage type 2 diabetes. It should be temporarily discontinued prior to procedures involving iodine contrast media, such as CT scans, because it can increase the risk of lactic acidosis when combined with the contrast. The contrast medium can impair renal function, and metformin is primarily excreted by the kidneys. Impaired kidney function, in combination with metformin, can increase the risk of lactic acidosis, a rare but serious condition. For this reason, metformin is typically held for 48 hours before and after the procedure, until renal function is confirmed to be normal.

Why the other options are incorrect:

A. acarbose

Acarbose is an alpha-glucosidase inhibitor used to manage type 2 diabetes. It does not interact with iodine contrast media and does not need to be discontinued before the CT scan. It works by delaying carbohydrate absorption, and its effects are not related to kidney function or the contrast media.

B. pioglitazone

Pioglitazone is a thiazolidinedione used to treat type 2 diabetes. Like acarbose, it is not directly affected by iodine contrast and does not require discontinuation prior to the CT scan. However, patients should still be monitored for any adverse effects during imaging procedures.

C. repaglinide

Repaglinide is a meglitinide used to manage type 2 diabetes by stimulating insulin release from the pancreas. While repaglinide should be monitored for changes in blood sugar levels, it does not require discontinuation prior to a CT scan with iodine contrast. It is not known to increase the risk of lactic acidosis like metformin does.

Summary:

Metformin should be questioned if prescribed the day before a CT scan with iodine contrast media because it increases the risk of lactic acidosis when used in combination with impaired kidney function caused by the contrast. The other medications do not require discontinuation before the procedure.

The correct answer is C: Cigarette smoking

Explanation for the correct answer:

C. Cigarette smoking

Cigarette smoking is the leading modifiable risk factor for bladder cancer. It is estimated that smokers are two to three times more likely to develop bladder cancer compared to non-smokers. This is due to the harmful chemicals in tobacco smoke that can enter the bloodstream, travel to the kidneys, and be excreted in the urine, where they may cause damage to the cells of the bladder lining. Smoking cessation is a critical preventive measure to reduce the risk of developing bladder cancer.

Why the other options are wrong:

A. Previous exposure to chemicals

Chemical exposure, particularly to industrial chemicals such as aromatic amines (used in the manufacturing of dyes, rubber, and other products), is a known risk factor for bladder cancer. However, chemical exposure is not a modifiable risk factor in the same way smoking is, as it involves external environmental or occupational factors that may not always be under the individual's control. While important to address, it is not as directly modifiable as cigarette smoking.

B. Pelvic radiation therapy

Pelvic radiation therapy is a non-modifiable risk factor for bladder cancer. While radiation exposure to the pelvic area increases the risk of developing various cancers, including bladder cancer, this risk factor is not something that can be changed or prevented by the individual. It is an important factor to consider in the medical history but cannot be controlled or modified by lifestyle changes.

D. Parasitic infections of the bladder

Chronic parasitic infections, specifically Schistosoma haematobium, which causes schistosomiasis, are a known cause of bladder cancer. However, this infection is not a common cause in countries where the disease is not endemic, and it is also not a modifiable risk factor for those who do not live in areas where this parasitic infection is prevalent.

Summary:

Cigarette smoking is the most significant modifiable risk factor for bladder cancer. Smoking cessation can significantly reduce the risk of developing this cancer. The other factors, while significant, are either non-modifiable or not as directly modifiable by lifestyle changes.

The correct answer is:

B. Decreased serum thyroid stimulating hormone (TSH)

C. Tachycardia or fine hand tremor

E. Elevated serum thyroxine (T4)

Explanation for the correct answers:

B. Decreased serum thyroid stimulating hormone (TSH)

In hyperthyroidism, the elevated levels of thyroid hormones (T3 and T4) lead to a decrease in the production of TSH by the pituitary gland. This is due to the negative feedback loop, where high levels of thyroid hormones suppress TSH secretion.

C. Tachycardia or fine hand tremor

Tachycardia (increased heart rate) and fine hand tremor are common clinical symptoms of hyperthyroidism. The elevated thyroid hormones increase the metabolic rate and stimulate the cardiovascular system, leading to a faster heart rate and tremors.

E. Elevated serum thyroxine (T4)

In hyperthyroidism, the levels of thyroxine (T4) are elevated as a result of increased thyroid hormone production by the thyroid gland.

Why the other options are incorrect:

A. Low serum thyroxine (T4) level

In hyperthyroidism, the serum T4 levels are elevated, not low. Hyperthyroidism is characterized by excess thyroid hormone production.

D. Elevated serum thyroid stimulating hormone (TSH)

TSH is typically low in hyperthyroidism due to the negative feedback mechanism in response to the high levels of thyroid hormones (T3 and T4).

Summary:

In a client with hyperthyroidism, the nurse should expect decreased TSH, elevated T4, and symptoms such as tachycardia or fine hand tremor due to the overproduction of thyroid hormones.

The correct answer is C: Between 0930 and 1030.

Explanation for the correct answer:

Regular insulin has a peak action time of approximately 2 to 4 hours after administration. Since the client receives 8 units of regular insulin at 0730, the nurse should be most alert for signs and symptoms of hypoglycemia 2 to 4 hours after administration, which would be between 0930 and 1030.

Why the other options are incorrect:

A: Between 0930 and 1130.

Although this time frame includes the peak action time of insulin, hypoglycemia is more likely to occur closer to the 2-hour peak, so this range is too wide.

B: Between 1130 and 1330.

This would be after the typical peak time for regular insulin, making hypoglycemia less likely during this period.

D: Between 1130 and 1930.

This range is much later than the peak time for regular insulin, so hypoglycemia is unlikely to occur during this time.

Summary:

The nurse should be most alert for signs of hypoglycemia between 0930 and 1030, which corresponds to the 2 to 4-hour window after administering regular insulin.

The correct answers are A: fever, B. vomiting, and C. watery stools.

Explanation for the correct answers:

A. Fever

Rotavirus infection often causes a fever as part of the body's immune response to the viral infection. This is commonly seen in the early stages of the illness.

B. Vomiting

Vomiting is a common symptom in children with rotavirus infection. It typically begins shortly after the onset of illness and can last for several days.

C. Watery stools

Watery stools or diarrhea are the hallmark symptoms of rotavirus infection. The diarrhea can be quite severe and lead to dehydration if not properly managed.

Why the other options are incorrect:

D. Bloody stools

Rotavirus typically causes watery diarrhea, not bloody stools. Bloody stools are more commonly associated with bacterial infections (e.g., Salmonella, Shigella, or Campylobacter) or conditions like inflammatory bowel disease.

E. Confusion

Confusion is not a typical finding in rotavirus infection. However, dehydration from prolonged diarrhea and vomiting can cause symptoms like lethargy, irritability, and dizziness, but confusion is not a primary symptom.

Summary:

In a child with rotavirus infection, expected findings include fever, vomiting, and watery stools. Bloody stools and confusion are not typical for this viral infection. Proper hydration and monitoring for dehydration are important in managing rotavirus.