A 28-year-old male has been found wandering around in a confusing pattern. The male is sweaty and pale. Which of the following tests is most likely to be performed first?
- A. Blood sugar check
- B. CT scan
- C. Blood cultures
- D. Arterial blood gases
Correct Answer: A
Rationale: In a 28-year-old male presenting with confusion, sweating, and pallor, the most likely cause is hypoglycemia, especially with no mention of trauma or infection. Therefore, the initial test to be performed should be a blood sugar check to rule out low blood sugar levels. Checking blood sugar levels is crucial in such a scenario as hypoglycemia can lead to altered mental status. A CT scan (choice B) is not typically the initial test for altered mental status without any focal neurological signs or head trauma. Blood cultures (choice C) are more relevant in cases suspected of infection, which is not a primary concern in this scenario. Arterial blood gases (choice D) may be considered later if there are concerns about respiratory status or acid-base disturbances, but in this case, checking the blood sugar level is the most immediate and appropriate action.
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A child is admitted to the hospital with a diagnosis of Wilms tumor, stage II. Which of the following statements most accurately describes this stage?
- A. The tumor is less than 3 cm in size and requires no chemotherapy.
- B. The tumor did not extend beyond the kidney and was completely resected.
- C. The tumor extended beyond the kidney but was completely resected.
- D. The tumor has spread into the abdominal cavity and cannot be resected.
Correct Answer: C
Rationale: In Wilms tumor staging, stage II indicates that the tumor extends beyond the kidney but is completely resected. This means that the tumor has spread beyond the kidney but has been successfully removed. Choices A and B are incorrect because a tumor less than 3 cm in size and a tumor that did not extend beyond the kidney do not align with the characteristics of stage II Wilms tumor. Choice D is also incorrect as it describes a more advanced stage where the tumor has spread into the abdominal cavity and cannot be completely resected. Therefore, the correct answer is C, as it accurately reflects the characteristics of a stage II Wilms tumor.
During shift change, a healthcare professional is reviewing a patient's medication. Which of the following medications would be contraindicated if the patient were pregnant?
- A. Warfarin (Coumadin)
- B. Celecoxib (Celebrex)
- C. Clonidine (Catapres)
- D. Transdermal nicotine (Habitrol)
Correct Answer: A
Rationale: Warfarin (Coumadin) is contraindicated in pregnancy due to its pregnancy category X classification. It is associated with central nervous system defects, spontaneous abortion, stillbirth, prematurity, hemorrhage, and ocular defects when administered at any time during pregnancy. Fetal warfarin syndrome can occur when given during the first trimester. Celecoxib (Celebrex) is a pregnancy category C medication, which means there may be risks but benefits may outweigh them. Clonidine (Catapres) is also a pregnancy category C drug, and while animal studies have shown adverse effects on the fetus, there are limited human studies. Transdermal nicotine (Habitrol) is classified as a pregnancy category D drug, indicating positive evidence of fetal risk, but benefits may still warrant its use in pregnant women with serious conditions.
A patient is scheduled for a magnetic resonance imaging (MRI) scan for suspected lung cancer. Which of the following is a contraindication to the study for this patient?
- A. The patient is allergic to shellfish.
- B. The patient has a pacemaker.
- C. The patient suffers from claustrophobia.
- D. The patient takes antipsychotic medication.
Correct Answer: B
Rationale: The correct answer is that the patient has a pacemaker. A pacemaker is a contraindication to MRI scanning due to the interference with the magnetic fields of the MRI scanner. This interference can potentially deactivate the pacemaker, putting the patient at risk. Patients with cardiac implantable electronic devices (CIED) are at risk for inappropriate device therapy, device heating/movement, and arrhythmia during MRI. This necessitates special precautions such as scheduling in a CIED blocked slot or having electrophysiology nurse or technician support. It is important to ensure that the patient's pacemaker is MRI conditional before proceeding with the scan. The other choices, such as being allergic to shellfish, suffering from claustrophobia, or taking antipsychotic medication, are not direct contraindications to undergoing an MRI scan for suspected lung cancer.
An 85-year-old client is diagnosed with hypernatremia due to lack of fluid intake and dehydration. The nurse knows that symptoms of hypernatremia include:
- A. Lack of thirst
- B. Pale skin
- C. Hypertension
- D. Swollen tongue
Correct Answer: D
Rationale: Hypernatremia among elderly clients can result from dehydration and insufficient fluid intake, leading to sodium levels above 145 mEq/L. Common symptoms of hypernatremia include mental status changes, a thick or swollen tongue, excessive thirst, and flushed skin. Choice A, 'Lack of thirst,' is incorrect as hypernatremia typically presents with excessive thirst. Choice B, 'Pale skin,' is not a typical symptom of hypernatremia. Choice C, 'Hypertension,' is not a direct symptom of hypernatremia and is more commonly associated with other conditions like hypertension itself.
When administering a shot of Vitamin K to a 30-day-old infant, which of the following target areas is the most appropriate?
- A. Gluteus maximus
- B. Gluteus minimus
- C. Vastus lateralis
- D. Vastus medialis
Correct Answer: C
Rationale: When administering medications to infants, it is common to use the vastus lateralis muscle in the thigh for injections. The preferred site is the junction of the upper and middle thirds of the vastus lateralis muscle. This area provides a good muscle mass for the injection and minimizes the risk of hitting nerves or blood vessels. The gluteus maximus and gluteus minimus are not typically used for infant injections due to the risk of injury to the sciatic nerve. The vastus medialis is not as commonly used as the vastus lateralis for infant injections.