Clinical Chemistry and the Geriatric Patient

High blood ammonia levels result in a. Respiratory acidosis b. Metabolic acidosis c. Metabolic alkalosis d. Respiratory alkalosis

Point-of-care testing is helpful when a. Results are needed quickly b. Only small sample sizes are available c. The device can be linked to the hospital LIS d. Quality control samples are not needed

The pituitary secretes which of the following hormones (more than one answer is possible)? a. Growth hormone b. Testosterone c. Insulin-like growth factor d. Thyroid-stimulating hormone

Aminoglycoside drug levels, such as gentamicin, should be measured a. 30 minutes after a dose b. 3 hours after a dose c. At steady state d. At any time

Which condition is least likely to be associated with increased alkaline phosphatase levels? a. Osteoporosis b. Paget’s disease c. Hyperparathyroidism d. Osteomalacia

. Which could account for drug toxicity following a normally prescribed dose? a. All of these b. Decreased renal clearance by the kidney c. Altered serum protein binding d. Liver impairment

Hearing loss is common among the elderly and may cause embarrassment. What should be done to facilitate the specimen collection process? a. Adjust your position to speak into the ear with the best hearing. b. Speak very loud and forcefully. c. Don’t speak at all. Just give the patient printed instructions. d. Use a microphone

Given the following information, calculate the creatinine clearance using the Cockcroft-Gault formula:Age = 85; weight = 70 kg; sex = maleSerum creatinine = 1.0 mg/dL a. 53 b. 72 c. 47 d. 35

Glucose intolerance, abnormal cholesterol level, high blood pressure, and upper body obesity are characteristics of a. Insulin resistance b. Chronic inflammatory disease c. Coronary heart disease d. Cerebrovascular disease