Oxycodone is a safer opioid to use in patients with moderate to end-stage renal failure.
Active metabolites of morphine accumulate in renal failure which means that long-term use is contraindicated in patients with moderate/severe renal failure.
These toxic metabolites can accumulate causing toxicity and risk overdose.
Oxycodone is mainly metabolised in the liver and thus safer to use in patients with moderate to end-stage renal failure with dose reductions.
Adverse effects:
Constipation is the most common overall side effect. Others include: asthenia, dizziness, dry mouth, headache, nausea, pruritus, etc.

Medications in renal failure:
Drugs to be avoided in patients with renal failure
Antibiotics: tetracycline, nitrofurantoin
NSAIDs
Lithium
Metformin
Drugs that require dose adjustment:
Most antibiotics including penicillin, cephalosporins, vancomycin, gentamicin, streptomycin
Digoxin, atenolol
Methotrexate
Sulphonylureas
Furosemide
Opioids
Relatively safe drugs:
Antibiotics: erythromycin, rifampicin
Diazepam
Warfarin

Tenderness is usually suggestive of a benign breast mass such as a breast abscess. Ultrasound is used to distinguish solid from cystic structures and to direct needle aspiration for abscess drainage.

A consultation with an ENT is required to establish the reason for the child’s drooling and stridor indicating and obstructive process. Enlarged tonsils and adenoids should be checked.

Pulsus paradoxus is defined as the exaggerated fall in systolic blood pressure during inspiration by greater than 10 mmHg. Cardiac tamponade is the classic cause of pulsus paradoxus. Kussmaul’s sign (a rise in the jugular venous pressure on inspiration) is mostly seen in constrictive pericarditis. Hypotension, muffled heart sounds and raised JVP can be seen in both conditions.

Primary hyperparathyroidism (PHPT) is diagnosed based upon levels of blood calcium and parathyroid hormone (PTH). In most people with PHPT, both levels are higher than normal. Occasionally, a person may have an elevated calcium level and a normal or minimally elevated PTH level. Since PTH should normally be low when calcium is elevated, a minimally elevated PTH is considered abnormal and indicates PHPT.

The patient’s history of a blood transfusion and lab results showing a markedly low C4 (with normal C3), elevated rheumatoid factor, and elevated serum IgM is highly suggestive of hepatitis C-associated cryoglobulinaemic vasculitis. Testing for Cryoglobulins will confirm this suspicion.

The somatotroph cells of the anterior pituitary gland produce growth hormone (GH).
GH deficiency in adults usually manifests as reduced physical performance and impaired psychological well-being. It results in alterations in the physiology of different systems of the body, manifesting as altered lipid metabolism, increased subcutaneous and visceral fat, decreased muscle mass, decreased bone density, low exercise performance, and reduced quality of life.

The combination of Insulinoma and Parathyroid diseases is suggestive of MEN 1 syndrome.
Multiple endocrine neoplasia type 1 (MEN1) is a rare hereditary tumour syndrome inherited in an autosomal dominant manner and characterized by a predisposition to a multitude of endocrine neoplasms primarily of parathyroid, entero-pancreatic, and anterior pituitary origin, as well as non-endocrine neoplasms.
Other endocrine tumours in MEN1 include foregut carcinoid tumours, adrenocortical tumours, and rarely pheochromocytoma. Nonendocrine manifestations include meningiomas and ependymomas, lipomas, angiofibromas, collagenomas, and leiomyomas.

Primary hyperparathyroidism (PHPT), due to parathyroid hyperplasia is the most frequent and usually the earliest expression of MEN-1, with a typical age of onset at 20-25 years.

Cardiac myxomas are the most common type of primary tumour of the heart. They are usually benign and arise from primary connective tissue. Most cardiac myxomas arise sporadically; however, 10% are hereditary (following an autosomal dominant pattern). Even though they may develop in any chamber of the heart, most (+-75 %) cardiac myxomas arise in the left atrium, usually from the interatrial septum, while the rest occur in the right atrium (ventricular myxomas are rare). Clinical features are primarily caused by obstruction of the blood flow through the heart and include dyspnoea on exertion, palpitations, syncope, weight loss, or even sudden death. Rarely, life-threatening conditions (e.g., stroke) may result from an embolization from the myxoma. Typical examination findings include abnormal heart sounds, such as a rumbling diastolic murmur over the apex or a characteristic tumour plop.
The diagnosis is not easily established clinically because of the nonspecific nature of symptoms. Echocardiography is the diagnostic procedure of choice. Surgical resection of the tumour is the curative treatment of choice. The prognosis is usually favourable, but tumours can recur after inadequate resection.

Congenital cytomegalovirus infection causes; jaundice, hepatosplenomegaly, petechia, microcephaly, hearing loss and seizures.