A nurse should expect to see an approximately 3% increase in the recipient's hemoglobin 4-6 hours after the administration of one unit of packed red blood cells.

The nutrients specifically required for thyroid hormone production are tyrosine, iodine, and selenium, in addition to zinc and several B vitamins. While magnesium, manganese, and methionine are all essential for metabolism and overall hormone production, they are not direct substrates or cofactors in the production of thyroid hormone.

A nurse should expect to see an approximately 3% increase in the recipient's hemoglobin 4-6 hours after the administration of one unit of packed red blood cells.

The digestion of dietary carbohydrates is initiated by amylase, an enzyme present in saliva. This enzyme breaks down long carbohydrate molecules into shorter units such as disaccharides. Lipase breaks down fats and is not present in the saliva, rather it is secreted by the pancreas into the duodenum. Pepsin is a protease - an enzyme that breaks down proteins. This enzyme is secreted by the chief cells of the stomach in its zymogen form (pepsinogen). It is activated by the product of the parietal cells (hydrochloric acid). Note that amylase is also secreted by the pancreas to complete the chemical digestion of carbohydrates into monosaccharides so that they can be absorbed by the brush border of the small intestine.

A papanicolaou test (pap smear) may be preformed routinely on adult women as a screening for cervical cancer. A rapid antigen detection test (rapid strep test), urine analysis, cervical cerclage, or vaginal ultrasound would not be part of routine screening.

The nurse does not have reason to suspect that the child will have an allergic reaction before symptoms are present. Thus, the patient should call back or come to the emergency room if symptoms present.

Eye lubricants are not used to achieve miosis during eye surgery. Eye lubricants are frequently used to treat dry eyes in cases where tears need to be replaced, to moisten contact lenses, or to protect eyes during surgery.

A positive Murphy's sign is an indication of cholecystitis, or gallbladder inflammation. Testing for Murphy's sign is performed during an abdominal exam by asking the patient to breathe out slowly while the fingers of the examiner are slid under the right costal margin and held in place with firm pressure. The patient is then asked to inhale, which forces the abdominal contents upward. Murphy's sign is considered positive if the patient winces or flinches when breathing in, due to pain when the inflamed gallbladder comes in contact with the examiner's fingertips.

Rovsing's sign, psoas sign, and McBurney's point are all tests for appendicitis.

While a small amount of fat digestion may occur in the mouth via the action of lingual lipase, the majority of lipid digestions begins in the duodenum. The presence of fat in the small intestine triggers release of pancreatic lipase, which enters the duodenum via the pancreatic duct. Fat digestion does not occur in the stomach.

The nutrients specifically required for thyroid hormone production are tyrosine, iodine, and selenium, in addition to zinc and several B vitamins. While magnesium, manganese, and methionine are all essential for metabolism and overall hormone production, they are not direct substrates or cofactors in the production of thyroid hormone.